• Subject Area
  • Physics
    • A0000 General
      • A0100 Communication, education, history, and philosophy
        • A0110 Announcements, news, and organizational activities
          • A0110C Announcements, news, and awards
          • A0110F Conferences, lectures, and institutes
          • A0110H Physics organizational activities
        • A0130 Physics literature and publications
          • A0130B Publications of lectures (advanced institutes, summer schools, etc.)
          • A0130C Conference proceedings
          • A0130E Monographs, and collections
          • A0130K Handbooks and dictionaries
          • A0130L Collections of physical data, tables
          • A0130N Textbooks
          • A0130Q Reports, dissertations, theses
          • A0130R Reviews and tutorial papers; resource letters
          • A0130T Bibliographies
        • A0140 Education
          • A0140D Educational course design and evaluation
          • A0140E Science in elementary and secondary schools
          • A0140G Curricula, teaching methods, strategies, and evaluation
          • A0140J Teacher training
        • A0150 Educational aids
          • A0150F Audio and visual aids for education
          • A0150H Instructional computer use for education
          • A0150K Testing theory and techniques for education
          • A0150M Demonstration experiments and apparatus
          • A0150P Laboratory experiments and apparatus for education
          • A0150Q Laboratory course design, organization, and evaluation
          • A0150T Buildings and facilities for education
        • A0155 General Physics
          • A0160 Biographical, historical, and personal notes
            • A0165 History of science
              • A0170 Philosophy of science
                • A0175 Science and society
                  • A0190 Other topics of general interest in physics
                  • A0200 Mathematical methods in physics
                    • A0210 Algebra, set theory, and graph theory
                      • A0220 Group theory
                        • A0230 Function theory, analysis
                          • A0240 Geometry, differential geometry, and topology
                            • A0250 Probability theory, stochastic processes, and statistics
                              • A0260 Numerical approximation and analysis
                                • A0270 Computational techniques
                                  • A0290 Other topics in mathematical methods in physics
                                  • A0300 Classical and quantum physics; mechanics and fields
                                    • A0320 Classical mechanics of discrete systems: general mathematical aspects
                                      • A0330 Special relativity
                                        • A0340 Classical mechanics of continuous media: general mathematical aspects
                                          • A0340D Mathematical theory of elasticity
                                          • A0340G Fluid dynamics: general mathematical aspects
                                          • A0340K Waves and wave propagation: general mathematical aspects
                                        • A0350 Classical field theory
                                          • A0350D Maxwell theory: general mathematical aspects
                                          • A0350K Other special classical field theories
                                        • A0365 Quantum theory; quantum mechanics
                                          • A0365B Foundations, theory of quantum measurement, miscellaneous quantum theories
                                          • A0365C Formalism in quantum theory
                                          • A0365D Functional analytical methods in quantum theory
                                          • A0365F Algebraic methods in quantum theory
                                          • A0365G Solutions of wave equations: bound state in quantum theory
                                          • A0365N Nonrelativistic scattering in quantum theory
                                          • A0365S Semiclassical theories and applications in quantum theory
                                        • A0367 Quantum information
                                          • A0367D Quantum cryptography
                                          • A0367H Quantum communication
                                          • A0367L Quantum computation
                                        • A0370 Theory of quantized fields
                                          • A0375B Atom and neutron optics
                                          • A0375F Bose-Einstein condensation
                                          • A0375P Atom lasers
                                        • A0375 Matter waves
                                          • A0375B Atom and neutron optics
                                          • A0375F Bose-Einstein condensation
                                          • A0375P Atom lasers
                                        • A0380 General theory of scattering
                                        • A0400 Relativity and gravitation
                                          • A0420 General relativity
                                            • A0420C Fundamental problems and general formalism in general relativity
                                            • A0420F Canonical formalism, Lagrangians, and variational principles in general relativity
                                            • A0420J Solutions to equations in general relativity
                                            • A0420M Conservation laws and equations of motion in general relativity
                                          • A0430 Gravitational waves and radiation: theory
                                            • A0440 Continuous media; electromagnetic and other mixed gravitational systems
                                              • A0450 Unified field theories
                                                • A0455 Alternative theories of gravitation
                                                  • A0460 Quantum theory of gravitation
                                                    • A0465 Supergravity
                                                      • A0470 Physics of black holes
                                                        • A0480 Experimental tests of general relativity and observations of gravitational radiation
                                                          • A0485 Intermediate range forces
                                                            • A0490 Other topics in relativity and gravitation
                                                            • A0500 Statistical physics and thermodynamics
                                                              • A0520 Statistical mechanics
                                                                • A0520D Kinetic theory in statistical mechanics
                                                                • A0520G Classical ensemble theory
                                                              • A0530 Quantum statistical mechanics
                                                                • A0530C Quantum ensemble theory
                                                                • A0530F Fermion systems and electron gas (quantum statistical mechanics)
                                                                • A0530J Boson systems (quantum statistical mechanics)
                                                                • A0530L Anyons and parastatistics (quantum statistical mechanics)
                                                              • A0540 Fluctuation phenomena, random processes, and Brownian motion
                                                                • A0545 Theory and models of chaotic systems
                                                                  • A0547 Nonlinear dynamical systems and bifurcations
                                                                    • A0550 Lattice theory and statistics; Ising problems
                                                                      • A0555 Fractals
                                                                        • A0560 Transport processes: theory
                                                                          • A0565 Self-organized systems
                                                                            • A0570 Thermodynamics
                                                                              • A0570C Thermodynamic functions and equations of state
                                                                              • A0570F Phase transitions: general thermodynamic aspects
                                                                              • A0570J Critical point phenomena in thermodynamics
                                                                              • A0570L Nonequilibrium thermodynamics, irreversible processes
                                                                            • A0580 Econophysics
                                                                              • A0590 Other topics in statistical physics and thermodynamics
                                                                              • A0600 Measurement science, general laboratory techniques, and instrumentation systems
                                                                                • A0620 Metrology
                                                                                  • A0620D Measurement and error theory
                                                                                  • A0620F Measurement units
                                                                                  • A0620H Measurement standards and calibration
                                                                                  • A0620J Determination of fundamental constants
                                                                                • A0630 Measurement of basic variables
                                                                                  • A0630C Spatial variables measurement
                                                                                  • A0630E Mass and density measurement
                                                                                  • A0630F Time and frequency measurement
                                                                                  • A0630G Velocity, acceleration and rotation measurement
                                                                                  • A0630L Measurement of basic electric and magnetic variables
                                                                                  • A0630M Measurement of mechanical variables
                                                                                  • A0630N Pressure measurement
                                                                                • A0650 Data handling and computation
                                                                                  • A0650D Data gathering, processing, and recording, data displays including digital techniques
                                                                                  • A0650M Computing devices and techniques
                                                                                • A0660 Laboratory techniques
                                                                                  • A0660E Sample preparation
                                                                                  • A0660J High-speed techniques (microsecond or shorter)
                                                                                  • A0660S Positioning and alignment; manipulating, remote handling
                                                                                  • A0660V Workshop techniques (welding, machining, lubrication, bearings, etc.)
                                                                                  • A0660W Safety in the laboratory
                                                                                • A0670 General instrumentation
                                                                                  • A0670D Sensing and detecting devices
                                                                                  • A0670E Testing equipment
                                                                                  • A0670H Display, recording, and indicating instruments
                                                                                  • A0670M Transducers
                                                                                  • A0670T Servo and control devices
                                                                                • A0690 Other topics in measurement science, general laboratory techniques and instrumentation systems
                                                                                • A0700 Specific instrumentation and techniques of general use in physics
                                                                                  • A0710 Mechanical instruments, equipment, and techniques
                                                                                    • A0710C Micromechanical and nanomechanical devices and systems
                                                                                    • A0710F Vibration isolation
                                                                                    • A0710Y Other mechanical instruments and techniques
                                                                                  • A0720 Thermal instruments and techniques
                                                                                    • A0720D Thermometry
                                                                                    • A0720F Calorimetry
                                                                                    • A0720H Furnaces
                                                                                    • A0720K High-temperature techniques and instrumentation; pyrometry
                                                                                    • A0720M Cryogenics
                                                                                  • A0725 Hygrometry
                                                                                    • A0730 Vacuum production and techniques
                                                                                      • A0730B Evacuating power, degasification, residual gas
                                                                                      • A0730C Vacuum pumps and pumping techniques
                                                                                      • A0730D Vacuum meters and measuring techniques
                                                                                      • A0730G Vacuum apparatus and testing methods
                                                                                      • A0730K Auxiliary vacuum apparatus, hardware and materials
                                                                                    • A0735 High pressure production and techniques
                                                                                      • A0750 Electrical instruments and techniques
                                                                                        • A0755 Magnetic instruments and techniques
                                                                                          • A0758 Magnetic resonance spectrometers, auxiliary instruments and techniques
                                                                                            • A0760 Optical instruments and techniques
                                                                                              • A0760D Photometry and radiometry
                                                                                              • A0760F Optical polarimetry and ellipsometry
                                                                                              • A0760H Optical refractometry and reflectometry
                                                                                              • A0760L Optical interferometry
                                                                                              • A0760P Optical microscopy
                                                                                              • A0765E UV and visible spectroscopy and spectrometers
                                                                                              • A0765G IR spectroscopy and spectrometers
                                                                                            • A0762 Detection of radiation (bolometers, photoelectric cells, i.r. and submillimetre waves detection)
                                                                                              • A0765 Optical spectroscopy and spectrometers
                                                                                                • A0765E UV and visible spectroscopy and spectrometers
                                                                                                • A0765G IR spectroscopy and spectrometers
                                                                                              • A0768 Photography, photographic instruments and techniques
                                                                                                • A0775 Mass spectrometers and mass spectrometry techniques
                                                                                                  • A0777 Particle beam production and handling; targets
                                                                                                    • A0779 Scanning probe microscopy and related techniques
                                                                                                      • A0780 Electron and ion microscopes and techniques
                                                                                                        • A0781 Electron and ion spectrometers and related techniques
                                                                                                          • A0785 X-ray, gamma-ray instruments and techniques
                                                                                                            • A0788 Particle interferometry and neutron instrumentation
                                                                                                              • A0790 Other topics in specialised instrumentation
                                                                                                            • A1000 The physics of elementary particles and fields
                                                                                                              • A1100 General theory of fields and particles
                                                                                                                • A1110 Quantum field theory
                                                                                                                  • A1110C Axiomatic field theories
                                                                                                                  • A1110E Lagrangian and Hamiltonian approach in quantum field theories
                                                                                                                  • A1110G Renormalization in quantum field theories
                                                                                                                  • A1110J Asymptotic problems and properties in quantum field theories
                                                                                                                  • A1110L Nonlinear or nonlocal field theories and models
                                                                                                                  • A1110M Schwinger source theory
                                                                                                                  • A1110N Gauge field theories
                                                                                                                  • A1110P Noncommutative field theory
                                                                                                                  • A1110Q Relativistic wave equations and field theories
                                                                                                                  • A1110S Bound and unstable states; Bethe-Salpeter equations
                                                                                                                  • A1110W Finite temperature field theory
                                                                                                                • A1117 Theories of strings and other extended objects
                                                                                                                  • A1120 S-matrix theory
                                                                                                                    • A1120D Scattering matrix and perturbation theory
                                                                                                                    • A1120F Dispersion relations and analytic properties of the S-matrix
                                                                                                                  • A1130 Symmetry and conservation laws
                                                                                                                    • A1130C Lorentz and Poincaré invariance
                                                                                                                    • A1130E Charge conjugation, parity, time reversal and other discrete symmetries
                                                                                                                    • A1130J SU(2) and SU(3) symmetries in particle physics
                                                                                                                    • A1130K SU(4) symmetry in particle physics
                                                                                                                    • A1130L Other internal and higher symmetries in particle physics
                                                                                                                    • A1130N Nonlinear and dynamical symmetries (spectrum-generating symmetries)
                                                                                                                    • A1130P Supersymmetry in particle physics
                                                                                                                    • A1130Q Spontaneous symmetry breaking in particle physics
                                                                                                                    • A1130R Chiral symmetries in particle physics
                                                                                                                  • A1140 Currents and their properties
                                                                                                                    • A1140D General theory of currents
                                                                                                                    • A1140F Lagrangian approach to current algebras
                                                                                                                    • A1140H Partially conserved axial-vector currents
                                                                                                                  • A1150 Dispersion relations and sum rules
                                                                                                                    • A1150E N/D method
                                                                                                                    • A1150G Bootstraps
                                                                                                                    • A1150J Crossing symmetries
                                                                                                                    • A1150L Sum rules
                                                                                                                    • A1150N Multivariable dispersion relations
                                                                                                                  • A1160 Complex angular momentum; Regge formalism
                                                                                                                    • A1180 Relativistic scattering theory
                                                                                                                      • A1180C Kinematical properties (helicity and invariant amplitudes, kinematic singularities, etc.)
                                                                                                                      • A1180E Partial-wave analysis
                                                                                                                      • A1180F Approximations (eikonal approximation, variational principles, etc.)
                                                                                                                      • A1180G Multichannel scattering
                                                                                                                      • A1180J Many-body scattering and Faddeev equation
                                                                                                                      • A1180L Multiple scattering
                                                                                                                    • A1190 Other topics in general field and particle theory
                                                                                                                    • A1200 Specific theories and interaction models; particle systematics
                                                                                                                      • A1210 Unified field theories and models
                                                                                                                        • A1210B Electroweak theories
                                                                                                                        • A1210C Standard model of unification
                                                                                                                        • A1210D Unified models beyond the standard model
                                                                                                                      • A1220 Models of electromagnetic interactions
                                                                                                                        • A1220D Specific calculations and limits of quantum electrodynamics
                                                                                                                        • A1220F Experimental tests of quantum electrodynamics
                                                                                                                      • A1225 Models for gravitational interactions
                                                                                                                        • A1230 Models of weak interactions
                                                                                                                          • A1230C Neutral currents
                                                                                                                          • A1230E Intermediate bosons
                                                                                                                          • A1235C General properties of quantum chromodynamics (dynamics, confinement, etc.)
                                                                                                                          • A1235E Applications of quantum chromodynamics to particle properties and reactions
                                                                                                                          • A1235H Phenomenological composite models of particle structure and reactions (partons, bags, etc.)
                                                                                                                          • A1235K Other composite models
                                                                                                                        • A1235 Composite models of particles
                                                                                                                          • A1235C General properties of quantum chromodynamics (dynamics, confinement, etc.)
                                                                                                                          • A1235E Applications of quantum chromodynamics to particle properties and reactions
                                                                                                                          • A1235H Phenomenological composite models of particle structure and reactions (partons, bags, etc.)
                                                                                                                          • A1235K Other composite models
                                                                                                                        • A1240 Models of strong interactions
                                                                                                                          • A1240E Statistical models of strong interactions
                                                                                                                          • A1240F Bootstrap models
                                                                                                                          • A1240H Duality and dual models
                                                                                                                          • A1240K Hadron classification schemes
                                                                                                                          • A1240M Complex angular momentum plane; Regge poles and cuts (Reggeons)
                                                                                                                          • A1240P Absorptive, optical, and eikonal models
                                                                                                                          • A1240Q Potential models of strong interactions
                                                                                                                          • A1240R Peripheral models (one or more particle exchange)
                                                                                                                          • A1240S Multiperipheral and multi-Regge models
                                                                                                                          • A1240V Vector-meson dominance
                                                                                                                        • A1270 Hadron mass formulas
                                                                                                                          • A1290 Miscellaneous theoretical ideas and models in elementary particle physics
                                                                                                                          • A1300 Specific elementary particle reactions and phenomenology
                                                                                                                            • A1310 Weak and electromagnetic interactions of leptons
                                                                                                                              • A1315 Neutrino interactions
                                                                                                                                • A1317 Neutrino oscillations
                                                                                                                                  • A1320 Leptonic and semileptonic decays of mesons
                                                                                                                                    • A1320C pi leptonic/semileptonic decays
                                                                                                                                    • A1320E K leptonic/semileptonic decays
                                                                                                                                    • A1320F Leptonic and semileptonic decays of charmed mesons
                                                                                                                                    • A1320G Leptonic and semileptonic decays of psi/J, Upsilon, phi mesons
                                                                                                                                    • A1320H B meson leptonic/semileptonic decays
                                                                                                                                    • A1320I f meson leptonic/semileptonic decays
                                                                                                                                    • A1320J Other meson leptonic/semileptonic decays
                                                                                                                                  • A1325 Hadronic decays of mesons
                                                                                                                                    • A1330 Decays of baryons
                                                                                                                                      • A1330C Leptonic and semileptonic decays of baryons
                                                                                                                                      • A1330E Hadronic decays of baryons
                                                                                                                                    • A1335 Decays of leptons
                                                                                                                                      • A1338 Decays of intermediate and Higgs bosons
                                                                                                                                        • A1340 Electromagnetic processes and properties of elementary particles
                                                                                                                                          • A1340D Electromagnetic mass differences
                                                                                                                                          • A1340F Electromagnetic form factors; electric and magnetic moments; structure functions
                                                                                                                                          • A1340H Electromagnetic decays of elementary particles
                                                                                                                                          • A1340K Electromagnetic corrections to strong and weak interaction processes
                                                                                                                                        • A1360 Photon and charged-lepton interactions with hadrons
                                                                                                                                          • A1360F Elastic and Compton scattering
                                                                                                                                          • A1360H Total and inclusive cross sections
                                                                                                                                          • A1360K Meson production
                                                                                                                                          • A1360M Meson-resonance production
                                                                                                                                          • A1360P Baryon and baryon resonance production
                                                                                                                                        • A1365 Hadron production by electron-positron collisions
                                                                                                                                          • A1375 Hadron-induced low- and intermediate-energy reactions and scattering, energy ≤ 10 GeV
                                                                                                                                            • A1375C Nucleon-nucleon interactions, including antinucleon, deuteron, etc. (energy ≤ 10 GeV)
                                                                                                                                            • A1375E Hyperon-nucleon interactions (energy ≤ 10 GeV)
                                                                                                                                            • A1375G Pion-baryon interactions (energy ≤ 10 GeV)
                                                                                                                                            • A1375J Kaon-baryon interactions (energy ≤ 10 GeV)
                                                                                                                                            • A1375L Meson-meson interactions (energy ≤ 10 GeV)
                                                                                                                                          • A1380 Photon-photon interactions and scattering
                                                                                                                                            • A1385D Hadron induced elastic scattering (energy > 10 GeV)
                                                                                                                                            • A1385F Hadron induced inelastic scattering, two-particle final states (energy > 10 GeV)
                                                                                                                                            • A1385H Hadron induced inelastic scattering, many-particle final states (energy > 10 GeV)
                                                                                                                                            • A1385K Hadron induced inclusive reactions, including total cross sections, (energy > 10 GeV)
                                                                                                                                            • A1385M Hadron induced cosmic ray interactions
                                                                                                                                            • A1385N Hadron induced very high energy interactions (E > 1 TeV)
                                                                                                                                          • A1385 Hadron-induced high- and super-high-energy interactions, energy > 10 GeV
                                                                                                                                            • A1385D Hadron induced elastic scattering (energy > 10 GeV)
                                                                                                                                            • A1385F Hadron induced inelastic scattering, two-particle final states (energy > 10 GeV)
                                                                                                                                            • A1385H Hadron induced inelastic scattering, many-particle final states (energy > 10 GeV)
                                                                                                                                            • A1385K Hadron induced inclusive reactions, including total cross sections, (energy > 10 GeV)
                                                                                                                                            • A1385M Hadron induced cosmic ray interactions
                                                                                                                                            • A1385N Hadron induced very high energy interactions (E > 1 TeV)
                                                                                                                                          • A1387 Jets in large-Q 2 elementary particle interactions
                                                                                                                                            • A1388 Polarization in elementary particle interactions and scattering
                                                                                                                                              • A1390 Other topics in specific reactions and phenomenology of elementary particles
                                                                                                                                              • A1400 Properties of specific particles and resonances
                                                                                                                                                • A1420 Baryons and baryon resonances
                                                                                                                                                  • A1420C Neutrons
                                                                                                                                                  • A1420E Protons
                                                                                                                                                  • A1420G Baryon resonances with S=0
                                                                                                                                                  • A1420J Hyperons and hyperon resonances
                                                                                                                                                  • A1420P Dibaryons
                                                                                                                                                • A1440 Mesons and meson resonances
                                                                                                                                                  • A1440D pi mesons
                                                                                                                                                  • A1440F K mesons
                                                                                                                                                  • A1440K rho, omega, and eta mesons
                                                                                                                                                  • A1440L D mesons
                                                                                                                                                  • A1440M a and B mesons
                                                                                                                                                  • A1440N psi/J, upsilon, phi mesons
                                                                                                                                                  • A1440P Other mesons
                                                                                                                                                • A1460 Leptons
                                                                                                                                                  • A1460C Electrons and positrons
                                                                                                                                                  • A1460E Muons
                                                                                                                                                  • A1460G Neutrinos
                                                                                                                                                  • A1460J Heavy leptons
                                                                                                                                                • A1480 Other and hypothetical particles
                                                                                                                                                  • A1480A Photons
                                                                                                                                                  • A1480D Quarks and gluons
                                                                                                                                                  • A1480F Intermediate and Higgs bosons
                                                                                                                                                  • A1480H Magnetic monopoles
                                                                                                                                                  • A1480J Supersymmetric particles
                                                                                                                                                  • A1480K Other elementary particles
                                                                                                                                            • A2000 Nuclear physics
                                                                                                                                              • A2100 Nuclear structure
                                                                                                                                                • A2110 General and average properties of nuclei; properties of nuclear energy levels
                                                                                                                                                  • A2110D Nuclear binding energy and masses
                                                                                                                                                  • A2110F Nuclear shape, charge, radius, form factors and structure functions
                                                                                                                                                  • A2110H Nuclear spin, parity, and isobaric spin
                                                                                                                                                  • A2110J Nuclear spectroscopic factors
                                                                                                                                                  • A2110K Nuclear electromagnetic moments
                                                                                                                                                  • A2110M Nuclear level density and structure
                                                                                                                                                  • A2110P Single particle structure in nuclear levels
                                                                                                                                                  • A2110R Collective structure in nuclear levels
                                                                                                                                                  • A2110S Nuclear Coulomb effects
                                                                                                                                                • A2130 Nuclear forces
                                                                                                                                                  • A2140 Few-nucleon systems
                                                                                                                                                    • A2160 Nuclear-structure models and methods
                                                                                                                                                      • A2160C Nuclear shell model
                                                                                                                                                      • A2160E Nuclear collective models
                                                                                                                                                      • A2160F Nuclear models based on group theory
                                                                                                                                                      • A2160G Nuclear cluster models
                                                                                                                                                      • A2160J Hartree-Fock and random-phase approximations in nuclei
                                                                                                                                                    • A2165 Nuclear matter
                                                                                                                                                      • A2180 Hypernuclei
                                                                                                                                                        • A2190 Other topics in nuclear structure
                                                                                                                                                        • A2300 Radioactivity and electromagnetic transitions
                                                                                                                                                          • A2320 Electromagnetic transitions
                                                                                                                                                            • A2320C Lifetimes and transition probabilities of nuclei
                                                                                                                                                            • A2320E Angular distribution and correlation measurements of nuclei
                                                                                                                                                            • A2320G Nuclear multipole mixing ratios
                                                                                                                                                            • A2320J Nuclear multipole matrix elements
                                                                                                                                                            • A2320L Nuclear gamma transitions and level energies
                                                                                                                                                            • A2320N Nuclear internal conversion and extranuclear effects
                                                                                                                                                            • A2320Q Nuclear resonance fluorescence
                                                                                                                                                          • A2340 beta decay; electron and muon capture
                                                                                                                                                            • A2340B Weak interaction and lepton aspects of beta decay
                                                                                                                                                            • A2340H Nuclear matrix elements and nuclear structure inferred from beta decay
                                                                                                                                                          • A2360 alpha decay
                                                                                                                                                            • A2380 Nuclear decays by heavy ion emission
                                                                                                                                                              • A2390 Other topics in nuclear decay and radioactivity
                                                                                                                                                              • A2400 Nuclear reactions and scattering: general
                                                                                                                                                                • A2410 Nuclear reaction and scattering models and methods
                                                                                                                                                                  • A2410D Coupled-channel and many-body-theory methods in nuclei
                                                                                                                                                                  • A2410F Plane- and distorted-wave Born approximations in nuclei
                                                                                                                                                                  • A2410H Optical and diffraction models in nuclei
                                                                                                                                                                • A2430 Resonance nuclear reactions and scattering
                                                                                                                                                                  • A2430C Giant resonances
                                                                                                                                                                  • A2430F Isobaric analogue states
                                                                                                                                                                • A2450 Direct nuclear reactions
                                                                                                                                                                  • A2460 Nuclear statistical theory and fluctuations
                                                                                                                                                                    • A2470 Polarization in nuclear reactions and scattering
                                                                                                                                                                      • A2475 General properties of fission
                                                                                                                                                                        • A2485 Quark models in nuclei and nuclear processes
                                                                                                                                                                          • A2490 Other topics in nuclear reactions and scattering, general
                                                                                                                                                                          • A2500 Nuclear reactions and scattering: specific reactions
                                                                                                                                                                            • A2510 Nuclear reactions and scattering involving few-nucleon systems
                                                                                                                                                                              • A2520 Photonuclear reactions and photon scattering
                                                                                                                                                                                • A2530 Lepton-induced reactions and scattering
                                                                                                                                                                                  • A2530C Electron and positron reactions and scattering
                                                                                                                                                                                  • A2530E Muon reactions and scattering
                                                                                                                                                                                  • A2530G Neutrino reactions and scattering
                                                                                                                                                                                • A2540 Nucleon-induced reactions and scattering
                                                                                                                                                                                  • A2540C Elastic proton scattering
                                                                                                                                                                                  • A2540D Elastic neutron scattering
                                                                                                                                                                                  • A2540E Inelastic proton scattering and (p, n) reactions
                                                                                                                                                                                  • A2540F Inelastic neutron scattering and (n, p) reactions
                                                                                                                                                                                  • A2540G Single nucleon transfer reactions
                                                                                                                                                                                  • A2540J Few nucleon transfer reactions
                                                                                                                                                                                  • A2540L Radiative capture
                                                                                                                                                                                  • A2540P Reactions and scattering above meson production thresholds (energies > 400 MeV)
                                                                                                                                                                                  • A2540S Spallation reactions
                                                                                                                                                                                • A2550 2H- and 3H-induced reactions and scattering
                                                                                                                                                                                  • A2550D 2H- and 3H-induced elastic, inelastic and charge exchange reactions
                                                                                                                                                                                  • A2550G 2H- and 3H-induced single-nucleon transfer reactions
                                                                                                                                                                                  • A2550J 2H- and 3H-induced few nucleon transfer reactions
                                                                                                                                                                                • A2560 3He- and 4He-induced reactions and scattering
                                                                                                                                                                                  • A2560C 3He- and 4He-induced elastic, inelastic and charge exchange reactions
                                                                                                                                                                                  • A2560E 3He- and 4He-induced single-nucleon transfer reactions
                                                                                                                                                                                  • A2560F 3He- and 4He-induced few nucleon transfer reactions
                                                                                                                                                                                • A2570 Heavy ion induced reactions and scattering
                                                                                                                                                                                  • A2570B Reaction mechanisms in heavy ion induced reactions
                                                                                                                                                                                  • A2570D Few nucleon transfers in heavy ion induced reactions
                                                                                                                                                                                  • A2570E Resonances in heavy ion induced reactions
                                                                                                                                                                                  • A2570G Compound nucleus properties and decays in heavy ion induced reactions
                                                                                                                                                                                  • A2570H Heavy ion induced elastic, inelastic, and charge exchange reactions
                                                                                                                                                                                  • A2570J Heavy ion induced fusion and fusion-fission reactions
                                                                                                                                                                                  • A2570K Coulomb excitation in heavy ion induced reactions
                                                                                                                                                                                  • A2570N Fragmentation and relativistic heavy ion induced collisions
                                                                                                                                                                                • A2580 Meson- and hyperon-induced reactions and scattering
                                                                                                                                                                                  • A2585C Spontaneous fission
                                                                                                                                                                                  • A2585E Neutron induced fission
                                                                                                                                                                                  • A2585G Charged particle induced fission
                                                                                                                                                                                  • A2585J Photofission
                                                                                                                                                                                • A2585 Fission reactions
                                                                                                                                                                                  • A2585C Spontaneous fission
                                                                                                                                                                                  • A2585E Neutron induced fission
                                                                                                                                                                                  • A2585G Charged particle induced fission
                                                                                                                                                                                  • A2585J Photofission
                                                                                                                                                                                • A2587 Nuclear fragmentation
                                                                                                                                                                                  • A2588 Fusion reactions
                                                                                                                                                                                    • A2590 Other topics in nuclear reactions and scattering: specific reactions
                                                                                                                                                                                    • A2700 Properties of specific nuclei listed by mass ranges
                                                                                                                                                                                      • A2710 Properties of nuclei with A ≤ 5
                                                                                                                                                                                        • A2720 Properties of nuclei with 6 ≤ A ≤ 19
                                                                                                                                                                                          • A2730 Properties of nuclei with 20 ≤ A ≤ 38
                                                                                                                                                                                            • A2740 Properties of nuclei with 39 ≤ A ≤ 58
                                                                                                                                                                                              • A2750 Properties of nuclei with 59 ≤ A ≤ 89
                                                                                                                                                                                                • A2760 Properties of nuclei with 90 ≤ A ≤ 149
                                                                                                                                                                                                  • A2770 Properties of nuclei with 150 ≤ A ≤ 189
                                                                                                                                                                                                    • A2780 Properties of nuclei with 190 ≤ A ≤ 219
                                                                                                                                                                                                      • A2790 Properties of nuclei with 220 ≤ A
                                                                                                                                                                                                      • A2800 Nuclear engineering and nuclear power studies
                                                                                                                                                                                                        • A2820 Neutron physics
                                                                                                                                                                                                          • A2820C Neutron reflection and scattering
                                                                                                                                                                                                          • A2820F Neutron absorption
                                                                                                                                                                                                          • A2820H Neutron diffusion
                                                                                                                                                                                                          • A2820L Neutron moderation
                                                                                                                                                                                                        • A2841 Fission reactor theory and design
                                                                                                                                                                                                          • A2841C Computing for fission reactor theory and design
                                                                                                                                                                                                          • A2841D Fission reactor design
                                                                                                                                                                                                          • A2841E Fission reactor theory and physics
                                                                                                                                                                                                        • A2842 Fission reactor materials
                                                                                                                                                                                                          • A2842D Fission reactor fuel elements
                                                                                                                                                                                                          • A2842H Fission reactor fuel preparation and reprocessing
                                                                                                                                                                                                          • A2842K Radioactive wastes from fission reactors
                                                                                                                                                                                                          • A2842N Fission reactor coolants
                                                                                                                                                                                                          • A2842P Fission reactor moderators
                                                                                                                                                                                                          • A2842Q Fission reactor structural and shielding materials
                                                                                                                                                                                                          • A2842R Fission reactor coolant circuit materials
                                                                                                                                                                                                        • A2843 Fission reactor operation
                                                                                                                                                                                                          • A2843B Cooling and heat recovery in fission reactors
                                                                                                                                                                                                          • A2843D Core control and guidance in fission reactors
                                                                                                                                                                                                          • A2843F Fission reactor maintenance and outages
                                                                                                                                                                                                          • A2843G Fission reactor control rooms
                                                                                                                                                                                                          • A2843H Instrumentation and experiments with fission reactors
                                                                                                                                                                                                        • A2844 Fission reactor protection systems, safety and accidents
                                                                                                                                                                                                          • A2846 Nuclear materials: safety aspects
                                                                                                                                                                                                            • A2846C Nuclear safeguards
                                                                                                                                                                                                            • A2846E Nuclear criticality safety
                                                                                                                                                                                                            • A2846G Packaging and transportation of nuclear materials
                                                                                                                                                                                                          • A2847 Fission reactor decommissioning
                                                                                                                                                                                                            • A2850 Fission reactor types and applications
                                                                                                                                                                                                              • A2850D Research, test and training reactors
                                                                                                                                                                                                              • A2850F Fast reactors
                                                                                                                                                                                                              • A2850G Light water reactors
                                                                                                                                                                                                              • A2850I Gas cooled reactors
                                                                                                                                                                                                              • A2850J Heavy water reactors
                                                                                                                                                                                                              • A2850K Propulsion reactors
                                                                                                                                                                                                              • A2850P Nuclear power supplies
                                                                                                                                                                                                              • A2852C Fusion reaction ignition
                                                                                                                                                                                                              • A2852F Fusion reactor materials
                                                                                                                                                                                                              • A2852J Fusion reactor theory and design
                                                                                                                                                                                                              • A2852L Fusion reactor instrumentation
                                                                                                                                                                                                              • A2852N Fusion reactor safety
                                                                                                                                                                                                              • A2858C Synergetic fission reactor systems
                                                                                                                                                                                                              • A2858E Fission + fusion systems
                                                                                                                                                                                                              • A2858G Spallation breeders
                                                                                                                                                                                                            • A2852 Fusion reactors
                                                                                                                                                                                                              • A2852C Fusion reaction ignition
                                                                                                                                                                                                              • A2852F Fusion reactor materials
                                                                                                                                                                                                              • A2852J Fusion reactor theory and design
                                                                                                                                                                                                              • A2852L Fusion reactor instrumentation
                                                                                                                                                                                                              • A2852N Fusion reactor safety
                                                                                                                                                                                                            • A2858 Integrated reactor systems
                                                                                                                                                                                                              • A2858C Synergetic fission reactor systems
                                                                                                                                                                                                              • A2858E Fission + fusion systems
                                                                                                                                                                                                              • A2858G Spallation breeders
                                                                                                                                                                                                            • A2870 Nuclear explosions
                                                                                                                                                                                                              • A2875C Radioactive waste (materials aspects)
                                                                                                                                                                                                              • A2875E Radioactive waste transport
                                                                                                                                                                                                              • A2875M Radioactive waste disposal and storage
                                                                                                                                                                                                              • A2875S Radioactive waste treatment and transmutation
                                                                                                                                                                                                            • A2875 Radioactive waste, transportation, disposal, storage, treatment
                                                                                                                                                                                                              • A2875C Radioactive waste (materials aspects)
                                                                                                                                                                                                              • A2875E Radioactive waste transport
                                                                                                                                                                                                              • A2875M Radioactive waste disposal and storage
                                                                                                                                                                                                              • A2875S Radioactive waste treatment and transmutation
                                                                                                                                                                                                            • A2880 Radiation technology in nuclear engineering, including shielding
                                                                                                                                                                                                              • A2880C Dosimetry in nuclear engineering
                                                                                                                                                                                                              • A2880F Radiation monitoring and radiation protection in nuclear engineering
                                                                                                                                                                                                            • A2890 Other topics in nuclear engineering and nuclear power studies
                                                                                                                                                                                                            • A2900 Experimental methods and instrumentation for elementary-particle and nuclear physics
                                                                                                                                                                                                              • A2910 Preacceleration (injection)
                                                                                                                                                                                                                • A2915B Electrostatic accelerators
                                                                                                                                                                                                                • A2915D Linear accelerators
                                                                                                                                                                                                              • A2915 Electrostatic and linear particle accelerators
                                                                                                                                                                                                                • A2915B Electrostatic accelerators
                                                                                                                                                                                                                • A2915D Linear accelerators
                                                                                                                                                                                                              • A2920 Cyclic accelerators and storage facilities
                                                                                                                                                                                                                • A2920D Storage rings
                                                                                                                                                                                                                • A2920F Betatrons
                                                                                                                                                                                                                • A2920H Cyclotrons
                                                                                                                                                                                                                • A2920J Synchrocyclotrons
                                                                                                                                                                                                                • A2920L Synchrotrons
                                                                                                                                                                                                                • A2925B Electron sources
                                                                                                                                                                                                                • A2925C Ion sources: positive, negative and polarized
                                                                                                                                                                                                                • A2925D Neutron sources
                                                                                                                                                                                                                • A2925E Radioactive sources
                                                                                                                                                                                                                • A2925F Beam handling, focusing, pulsing, stripping and diagnostics
                                                                                                                                                                                                                • A2925G Nuclear bombardment targets
                                                                                                                                                                                                                • A2925K Polarized targets
                                                                                                                                                                                                                • A2925M Other lepton sources
                                                                                                                                                                                                              • A2921 Beams in particle accelerators
                                                                                                                                                                                                                • A2925 Particle sources and targets, preparation and technology
                                                                                                                                                                                                                  • A2925B Electron sources
                                                                                                                                                                                                                  • A2925C Ion sources: positive, negative and polarized
                                                                                                                                                                                                                  • A2925D Neutron sources
                                                                                                                                                                                                                  • A2925E Radioactive sources
                                                                                                                                                                                                                  • A2925F Beam handling, focusing, pulsing, stripping and diagnostics
                                                                                                                                                                                                                  • A2925G Nuclear bombardment targets
                                                                                                                                                                                                                  • A2925K Polarized targets
                                                                                                                                                                                                                  • A2925M Other lepton sources
                                                                                                                                                                                                                • A2930 Radiation spectrometers and spectroscopic techniques
                                                                                                                                                                                                                  • A2930D Heavy charged-particle spectroscopy
                                                                                                                                                                                                                  • A2930E alpha-ray spectroscopy
                                                                                                                                                                                                                  • A2930F Beta-ray and electron spectroscopy
                                                                                                                                                                                                                  • A2930H Neutron spectroscopy
                                                                                                                                                                                                                  • A2930K X- and gamma-ray spectroscopy
                                                                                                                                                                                                                • A2940 Radiation detectors
                                                                                                                                                                                                                  • A2940B Ionisation chambers
                                                                                                                                                                                                                  • A2940C Proportional counters; multiwire proportional chambers
                                                                                                                                                                                                                  • A2940D Cloud chambers
                                                                                                                                                                                                                  • A2940F Bubble chambers
                                                                                                                                                                                                                  • A2940H Spark chambers and other track chambers
                                                                                                                                                                                                                  • A2940K Cherenkov detectors
                                                                                                                                                                                                                  • A2940M Scintillation detectors; scintillators and photomultipliers
                                                                                                                                                                                                                  • A2940P Semiconductor detectors
                                                                                                                                                                                                                  • A2940Q Transition radiation detectors
                                                                                                                                                                                                                  • A2940R Nuclear emulsions
                                                                                                                                                                                                                  • A2940S Geiger tubes
                                                                                                                                                                                                                  • A2940T Position sensitive detectors
                                                                                                                                                                                                                  • A2940W Solid-state nuclear track detectors
                                                                                                                                                                                                                  • A2940X Superconducting particle detectors
                                                                                                                                                                                                                • A2960 Counting circuits and nuclear electronics
                                                                                                                                                                                                                  • A2960C Basic function units; supply units, amplifiers (nuclear electronics)
                                                                                                                                                                                                                  • A2960E Pulse counting assemblies; counting scalers, analyzers (nuclear electronics)
                                                                                                                                                                                                                  • A2960G Pulse circuits (nuclear electronics)
                                                                                                                                                                                                                  • A2960J Radiation monitors (nuclear electronics)
                                                                                                                                                                                                                • A2970 Radiation measurement, detection and counting
                                                                                                                                                                                                                  • A2970D Angular correlation techniques in radiation measurement
                                                                                                                                                                                                                  • A2970F Coincidence techniques in radiation measurement
                                                                                                                                                                                                                  • A2970G Energy loss and energy range relations in radiation measurement
                                                                                                                                                                                                                  • A2970J Integral methods of radiation detection
                                                                                                                                                                                                                • A2975 Polarization analysis (elementary-particle and nuclear physics)
                                                                                                                                                                                                                  • A2980 Nuclear information processing
                                                                                                                                                                                                                    • A2980C Computer systems for nuclear information processing
                                                                                                                                                                                                                    • A2980F Programming for nuclear information processing
                                                                                                                                                                                                                  • A2990 Other topics in high-energy and nuclear experimental methods and instrumentation
                                                                                                                                                                                                                • A3000 Atomic and molecular physics
                                                                                                                                                                                                                  • A3100 Theory of atoms and molecules
                                                                                                                                                                                                                    • A3110 General theory of structure, transitions and chemical binding in atoms and molecules
                                                                                                                                                                                                                      • A3115 General mathematical and computational developments for atoms and molecules
                                                                                                                                                                                                                        • A3120 Specific calculations and results for atoms and molecules
                                                                                                                                                                                                                          • A3120A Ab initio calculations (atoms and molecules)
                                                                                                                                                                                                                          • A3120B SCF and HF calculations (atoms and molecules)
                                                                                                                                                                                                                          • A3120C Coupled cluster calculations (atoms and molecules)
                                                                                                                                                                                                                          • A3120H Xalpha methods (atoms and molecules)
                                                                                                                                                                                                                          • A3120J Local density approximation (atoms and molecules)
                                                                                                                                                                                                                          • A3120L Other statistical model calculations (atoms and molecules)
                                                                                                                                                                                                                          • A3120N Semi-empirical NDO calculations (atoms and molecules)
                                                                                                                                                                                                                          • A3120P Other semi-empirical calculations (atoms and molecules)
                                                                                                                                                                                                                          • A3120R Valence bond calculations (ab initio or not) (atoms and molecules)
                                                                                                                                                                                                                          • A3120T Electron correlation and CI calculations (atoms and molecules)
                                                                                                                                                                                                                          • A3120W Empirical methods (atoms and molecules)
                                                                                                                                                                                                                        • A3130 Electronic structure of atoms and molecules, corrections and effects of interactions
                                                                                                                                                                                                                          • A3130G Hyperfine interactions and isotope effects (atoms and molecules)
                                                                                                                                                                                                                          • A3130J Radiative and relativistic effects (atoms and molecules)
                                                                                                                                                                                                                          • A3130L Environmental and solvent effects (atoms and molecules)
                                                                                                                                                                                                                          • A3130N Molecular solids
                                                                                                                                                                                                                        • A3150 Excited states of atoms and molecules
                                                                                                                                                                                                                          • A3180 Potential energy surfaces (atoms and molecules)
                                                                                                                                                                                                                            • A3190 Other topics in the theory of atoms and molecules
                                                                                                                                                                                                                            • A3200 Atomic spectra and interactions with photons
                                                                                                                                                                                                                              • A3220 Atomic spectra grouped by wavelength ranges
                                                                                                                                                                                                                                • A3220D Radiofrequency and microwave atomic spectra
                                                                                                                                                                                                                                • A3220F Infrared and Raman atomic spectra
                                                                                                                                                                                                                                • A3220J Visible and ultraviolet atomic spectra
                                                                                                                                                                                                                                • A3220R X-ray atomic spectra
                                                                                                                                                                                                                              • A3240 Magnetic resonance spectra of atoms
                                                                                                                                                                                                                                • A3250 Atomic fluorescence, phosphorescence; radiationless transitions
                                                                                                                                                                                                                                  • A3250F Atomic fluorescence, phosphorescence
                                                                                                                                                                                                                                  • A3250H Atomic radiationless transitions
                                                                                                                                                                                                                                • A3260 Magneto-optical and electro-optical effects in atoms; birefringence, dichroism and optical activity
                                                                                                                                                                                                                                  • A3260S Stark effect in atoms
                                                                                                                                                                                                                                  • A3260V Zeeman effect in atoms
                                                                                                                                                                                                                                • A3270 Atomic spectral line shapes and intensities
                                                                                                                                                                                                                                  • A3270C Atomic oscillator strengths, transition moments
                                                                                                                                                                                                                                  • A3270F Atomic lifetimes, absolute and relative intensities, transition probabilities
                                                                                                                                                                                                                                  • A3270J Atomic line shapes, widths, and shifts
                                                                                                                                                                                                                                • A3280 Photon interactions with atoms
                                                                                                                                                                                                                                  • A3280B Atomic level crossing, optical pumping, population inversion, stimulated emission
                                                                                                                                                                                                                                  • A3280D Atomic autoionization
                                                                                                                                                                                                                                  • A3280F Atomic photoionization, photodetachment, photoelectron spectra
                                                                                                                                                                                                                                  • A3280H Auger effect and inner-shell ionization (atoms)
                                                                                                                                                                                                                                  • A3280K Multiphoton processes in atoms
                                                                                                                                                                                                                                  • A3280P Optical cooling of atoms; trapping
                                                                                                                                                                                                                                • A3290 Other topics in atomic spectra and interactions with photons
                                                                                                                                                                                                                                • A3300 Molecular spectra and interactions with photons
                                                                                                                                                                                                                                  • A3310 Calculation of molecular spectra
                                                                                                                                                                                                                                    • A3310C Calculational methods (molecular spectra)
                                                                                                                                                                                                                                    • A3310E Rotational analysis (molecular spectra)
                                                                                                                                                                                                                                    • A3310G Vibrational analysis (molecular spectra)
                                                                                                                                                                                                                                    • A3310J Vibrational-rotational analysis (molecular spectra)
                                                                                                                                                                                                                                    • A3310L Vibronic, rovibronic, and rotation-electron-spin interactions (molecular spectra)
                                                                                                                                                                                                                                  • A3320 Molecular spectra grouped by wavelength ranges
                                                                                                                                                                                                                                    • A3320B Radiofrequency and microwave molecular spectra
                                                                                                                                                                                                                                    • A3320E Infrared molecular spectra
                                                                                                                                                                                                                                    • A3320F Raman and Rayleigh molecular spectra
                                                                                                                                                                                                                                    • A3320K Visible molecular spectra
                                                                                                                                                                                                                                    • A3320L Ultraviolet molecular spectra
                                                                                                                                                                                                                                    • A3320N Vacuum ultraviolet molecular spectra
                                                                                                                                                                                                                                    • A3320R X-ray molecular spectra
                                                                                                                                                                                                                                    • A3325B Relaxation phenomena (molecular NMR)
                                                                                                                                                                                                                                    • A3325D Chemical shifts (molecular NMR)
                                                                                                                                                                                                                                    • A3325F Nuclear spin interactions, quadrupole effects and nuclear coupling (molecules)
                                                                                                                                                                                                                                    • A3325H Chemically induced dynamic nuclear polarization (CIDNP) (molecules)
                                                                                                                                                                                                                                    • A3325K Quadrupole resonance (molecular NQR)
                                                                                                                                                                                                                                  • A3325 Nuclear magnetic resonance and relaxation in molecules; nuclear quadrupole resonance (NQR)
                                                                                                                                                                                                                                    • A3325B Relaxation phenomena (molecular NMR)
                                                                                                                                                                                                                                    • A3325D Chemical shifts (molecular NMR)
                                                                                                                                                                                                                                    • A3325F Nuclear spin interactions, quadrupole effects and nuclear coupling (molecules)
                                                                                                                                                                                                                                    • A3325H Chemically induced dynamic nuclear polarization (CIDNP) (molecules)
                                                                                                                                                                                                                                    • A3325K Quadrupole resonance (molecular NQR)
                                                                                                                                                                                                                                  • A3330 Electron paramagnetic resonance and relaxation of molecules
                                                                                                                                                                                                                                    • A3330B Relaxation phenomena in molecular EPR
                                                                                                                                                                                                                                    • A3330H Chemically induced dynamic electron polarization (CIDEP) in molecules
                                                                                                                                                                                                                                    • A3335D DNMR, ENDOR, ELDOR, Overhauser, INDOR, DNP of molecules
                                                                                                                                                                                                                                    • A3335H MODR and PMDR of molecules (microwave optical double resonance and phosphorescence microwave double resonance)
                                                                                                                                                                                                                                  • A3335 Double resonances and other multiple resonances of molecules
                                                                                                                                                                                                                                    • A3335D DNMR, ENDOR, ELDOR, Overhauser, INDOR, DNP of molecules
                                                                                                                                                                                                                                    • A3335H MODR and PMDR of molecules (microwave optical double resonance and phosphorescence microwave double resonance)
                                                                                                                                                                                                                                  • A3340 Mössbauer spectra of molecules
                                                                                                                                                                                                                                    • A3345B Zeeman and Stark effects in molecules
                                                                                                                                                                                                                                    • A3345C Magnetic circular dichroism in molecules
                                                                                                                                                                                                                                    • A3345D Optical activity, optical rotation, circular dichroism in molecules
                                                                                                                                                                                                                                  • A3345 Magneto-optical and electro-optical effects in molecules; birefringence, dichroism and optical activity
                                                                                                                                                                                                                                    • A3345B Zeeman and Stark effects in molecules
                                                                                                                                                                                                                                    • A3345C Magnetic circular dichroism in molecules
                                                                                                                                                                                                                                    • A3345D Optical activity, optical rotation, circular dichroism in molecules
                                                                                                                                                                                                                                  • A3350 Molecular fluorescence, phosphorescence; radiationless transitions (intersystem crossing, internal conversion)
                                                                                                                                                                                                                                    • A3350D Molecular fluorescence and phosphorescence spectra
                                                                                                                                                                                                                                    • A3350H Molecular radiationless transitions
                                                                                                                                                                                                                                  • A3365 Photoelectron spectra of molecules
                                                                                                                                                                                                                                    • A3365C UV and VUV photoelectron spectra of molecules
                                                                                                                                                                                                                                    • A3365F X-ray photoelectron spectra of molecules
                                                                                                                                                                                                                                  • A3370 Intensities and shapes of molecular spectral lines and bands
                                                                                                                                                                                                                                    • A3370C Molecular oscillator and band strengths, transition moments, Franck-Condon factors
                                                                                                                                                                                                                                    • A3370F Molecular lifetimes, absolute and relative line and band intensities
                                                                                                                                                                                                                                    • A3370J Molecular line and band widths, shapes, and shifts
                                                                                                                                                                                                                                  • A3380 Photon interactions with molecules
                                                                                                                                                                                                                                    • A3380B Molecular level crossing, optical pumping, population inversion, stimulated emission
                                                                                                                                                                                                                                    • A3380E Autoionization, photoionization, and photodetachment of molecules
                                                                                                                                                                                                                                    • A3380G Diffuse molecular spectra; predissociation, photodissociation
                                                                                                                                                                                                                                    • A3380K Multiphoton processes in molecules
                                                                                                                                                                                                                                    • A3380P Optical cooling of molecules; trapping
                                                                                                                                                                                                                                  • A3390 Other topics in molecular spectra and interactions with photons
                                                                                                                                                                                                                                  • A3400 Atomic and molecular collision processes and interactions
                                                                                                                                                                                                                                    • A3410 General theories and models (atomic and molecular collision processes)
                                                                                                                                                                                                                                      • A3420 Interatomic and intermolecular potentials and forces
                                                                                                                                                                                                                                        • A3425 Intramolecular energy transfer; intramolecular dynamics; dynamics of van der Waals molecules
                                                                                                                                                                                                                                          • A3430 Potential energy surfaces for collisions (atoms and molecules)
                                                                                                                                                                                                                                            • A3440 Elastic scattering of atoms and molecules
                                                                                                                                                                                                                                              • A3450 Inelastic scattering of atoms and molecules
                                                                                                                                                                                                                                                • A3450B Energy loss and stopping power (atoms and molecules)
                                                                                                                                                                                                                                                • A3450D Interactions of atoms, molecules and ions with surfaces
                                                                                                                                                                                                                                                • A3450E Rotational and vibrational energy transfer (atoms and molecules)
                                                                                                                                                                                                                                                • A3450H Electronic excitation and ionization (atoms and molecules)
                                                                                                                                                                                                                                                • A3450L Chemical reactions, energy disposal, and angular distribution, as studied by atomic and molecular beams
                                                                                                                                                                                                                                                • A3450R Laser-modified inelastic scattering of atoms and molecules
                                                                                                                                                                                                                                              • A3470 Charge transfer (atoms and molecules)
                                                                                                                                                                                                                                                • A3480 Electron scattering, electron spectra (atoms and molecules)
                                                                                                                                                                                                                                                  • A3480B Elastic scattering of electrons by atoms and molecules
                                                                                                                                                                                                                                                  • A3480D Atomic excitation and ionization by electron impact
                                                                                                                                                                                                                                                  • A3480G Molecular excitation, ionization, and dissociation by electron impact
                                                                                                                                                                                                                                                  • A3480L Electron-ion recombination and electron attachment (atoms and molecules)
                                                                                                                                                                                                                                                  • A3480Q Laser-modified electron scattering (atoms and molecules)
                                                                                                                                                                                                                                                  • A3485B Elastic scattering of positrons by atoms and molecules
                                                                                                                                                                                                                                                  • A3485D Atomic excitation and ionization by positron impact
                                                                                                                                                                                                                                                  • A3485G Molecular excitation, ionization and dissociation by positron impact
                                                                                                                                                                                                                                                  • A3485L Positron-ion recombination and positron attachment (atoms and molecules)
                                                                                                                                                                                                                                                  • A3485Q Laser-modified positron scattering (atoms and molecules)
                                                                                                                                                                                                                                                • A3485 Positron scattering, positron spectra (atoms and molecules)
                                                                                                                                                                                                                                                  • A3485B Elastic scattering of positrons by atoms and molecules
                                                                                                                                                                                                                                                  • A3485D Atomic excitation and ionization by positron impact
                                                                                                                                                                                                                                                  • A3485G Molecular excitation, ionization and dissociation by positron impact
                                                                                                                                                                                                                                                  • A3485L Positron-ion recombination and positron attachment (atoms and molecules)
                                                                                                                                                                                                                                                  • A3485Q Laser-modified positron scattering (atoms and molecules)
                                                                                                                                                                                                                                                • A3490 Other topics in atomic and molecular collision processes and interactions
                                                                                                                                                                                                                                                • A3500 Properties of atoms and molecules; instruments and techniques
                                                                                                                                                                                                                                                  • A3510 Atomic properties
                                                                                                                                                                                                                                                    • A3510B Atomic masses, mass spectra, abundances, and isotopes
                                                                                                                                                                                                                                                    • A3510D Atomic electric and magnetic moments, polarizability
                                                                                                                                                                                                                                                    • A3510F Atomic fine- and hyperfine-structure constants
                                                                                                                                                                                                                                                    • A3510H Atomic ionization potentials, electron affinities
                                                                                                                                                                                                                                                    • A3510W Atomic weak interactions
                                                                                                                                                                                                                                                  • A3520 Molecular properties
                                                                                                                                                                                                                                                    • A3520B General molecular conformation and symmetry; stereochemistry
                                                                                                                                                                                                                                                    • A3520D Interatomic distances and angles in molecules
                                                                                                                                                                                                                                                    • A3520G Molecular bond strengths, dissociation energies, hydrogen bonding
                                                                                                                                                                                                                                                    • A3520J Molecular barrier heights (internal rotation, inversion); rotational isomerism, conformational dynamics
                                                                                                                                                                                                                                                    • A3520M Molecular electric and magnetic moments (and derivatives), polarizability, and magnetic susceptibility
                                                                                                                                                                                                                                                    • A3520P Molecular rotation, vibration, and vibration-rotation constants
                                                                                                                                                                                                                                                    • A3520S Molecular hyperfine and fine-structure constants
                                                                                                                                                                                                                                                    • A3520V Molecular ionization potentials, electron affinities, molecular core binding energy
                                                                                                                                                                                                                                                    • A3520W Molecular weak interactions
                                                                                                                                                                                                                                                    • A3520X Molecular mass spectra
                                                                                                                                                                                                                                                    • A3520Y Correlation times in molecular dynamics
                                                                                                                                                                                                                                                  • A3580 Atomic and molecular measurements and techniques
                                                                                                                                                                                                                                                    • A3580B Time-resolved measurements and techniques (atoms and molecules)
                                                                                                                                                                                                                                                • A3600 Studies of special atoms and molecules
                                                                                                                                                                                                                                                  • A3610 Exotic atoms and molecules (containing mesons, muons, and other abnormal particles)
                                                                                                                                                                                                                                                    • A3610D Positronium, muonium, muonic atoms and molecules
                                                                                                                                                                                                                                                    • A3610G Mesonic atoms and molecules, hyperonic atoms and molecules
                                                                                                                                                                                                                                                  • A3620 Macromolecules and polymer molecules
                                                                                                                                                                                                                                                    • A3620C Macromolecular conformation (statistics and dynamics)
                                                                                                                                                                                                                                                    • A3620E Macromolecular constitution (chains and sequences)
                                                                                                                                                                                                                                                    • A3620F Molecular weights of macromolecules
                                                                                                                                                                                                                                                    • A3620H Macromolecular configuration (bonds, dimensions)
                                                                                                                                                                                                                                                    • A3620K Electronic structure and spectra of macromolecules
                                                                                                                                                                                                                                                  • A3640 Atomic and molecular clusters
                                                                                                                                                                                                                                                    • A3640B Geometrical structure of clusters
                                                                                                                                                                                                                                                    • A3640C Spectra and electronic structure of clusters
                                                                                                                                                                                                                                                    • A3640J Interactions of clusters (collisions and reactions)
                                                                                                                                                                                                                                                  • A3690 Other special atoms and molecules
                                                                                                                                                                                                                                                • A4000 Fundamental areas of phenomenology
                                                                                                                                                                                                                                                  • A4100 Electricity and magnetism; fields and charged particles
                                                                                                                                                                                                                                                    • A4110 Classical electromagnetism
                                                                                                                                                                                                                                                      • A4110D Electrostatics, magnetostatics
                                                                                                                                                                                                                                                      • A4110F Steady-state electromagnetic fields; electromagnetic induction
                                                                                                                                                                                                                                                      • A4110H Electromagnetic waves: theory
                                                                                                                                                                                                                                                    • A4170 Particles in electromagnetic fields: classical aspects
                                                                                                                                                                                                                                                      • A4180 Particle beams and particle optics
                                                                                                                                                                                                                                                        • A4180D Electron beams and electron optics
                                                                                                                                                                                                                                                        • A4180G Ion beams and ion optics
                                                                                                                                                                                                                                                      • A4190 Other topics in electricity and magnetism
                                                                                                                                                                                                                                                      • A4200 Optics
                                                                                                                                                                                                                                                        • A4215 Geometrical optics
                                                                                                                                                                                                                                                          • A4215D Optical wave fronts and ray tracing
                                                                                                                                                                                                                                                          • A4215E Optical system design
                                                                                                                                                                                                                                                        • A4225 Physical optics
                                                                                                                                                                                                                                                          • A4225B Optical propagation, transmission and absorption
                                                                                                                                                                                                                                                          • A4225F Optical diffraction and scattering
                                                                                                                                                                                                                                                          • A4225G Edge and boundary effects; optical reflection and refraction
                                                                                                                                                                                                                                                          • A4225H Optical interference and speckle
                                                                                                                                                                                                                                                          • A4225J Optical polarization
                                                                                                                                                                                                                                                          • A4225K Optical coherence
                                                                                                                                                                                                                                                          • A4225L Birefringence (physical optics)
                                                                                                                                                                                                                                                        • A4230 Optical information, image formation and analysis
                                                                                                                                                                                                                                                          • A4230D Theory of optical information and image processing
                                                                                                                                                                                                                                                          • A4230F Aberrations in optical images
                                                                                                                                                                                                                                                          • A4230H Resolution of optical images
                                                                                                                                                                                                                                                          • A4230K Fourier transform optics
                                                                                                                                                                                                                                                          • A4230L Modulation and optical transfer functions
                                                                                                                                                                                                                                                          • A4230Q Optical communication
                                                                                                                                                                                                                                                          • A4230S Pattern recognition
                                                                                                                                                                                                                                                          • A4230V Image processing and restoration
                                                                                                                                                                                                                                                        • A4240 Holography
                                                                                                                                                                                                                                                          • A4240D Theory of holography
                                                                                                                                                                                                                                                          • A4240E Holographic optical elements; holographic gratings
                                                                                                                                                                                                                                                          • A4240F Image characteristics in holography
                                                                                                                                                                                                                                                          • A4240H Holographic recording
                                                                                                                                                                                                                                                          • A4240J Computer-generated holography
                                                                                                                                                                                                                                                          • A4240K Holographic interferometry; other holographic techniques
                                                                                                                                                                                                                                                          • A4240M Applications of holography
                                                                                                                                                                                                                                                        • A4250 Quantum optics
                                                                                                                                                                                                                                                          • A4250V Mechanical effects of light
                                                                                                                                                                                                                                                          • A4255B General theory of lasing action
                                                                                                                                                                                                                                                          • A4255D CO 2 lasers
                                                                                                                                                                                                                                                          • A4255F Inert gas lasers
                                                                                                                                                                                                                                                          • A4255G Excimer lasers
                                                                                                                                                                                                                                                          • A4255H Lasing action in other gas lasers
                                                                                                                                                                                                                                                          • A4255K Chemical lasers
                                                                                                                                                                                                                                                          • A4255M Lasing action in liquids and organic dyes
                                                                                                                                                                                                                                                          • A4255N Fibre lasers and amplifiers
                                                                                                                                                                                                                                                          • A4255P Lasing action in semiconductors
                                                                                                                                                                                                                                                          • A4255Q Laser-active defect centres in solids
                                                                                                                                                                                                                                                          • A4255R Lasing action in other solids
                                                                                                                                                                                                                                                          • A4255T Free electron lasers
                                                                                                                                                                                                                                                          • A4255V High energy lasing processes (e.g. gamma and X-ray lasers)
                                                                                                                                                                                                                                                        • A4252 Masers
                                                                                                                                                                                                                                                          • A4255 Lasing processes
                                                                                                                                                                                                                                                            • A4255B General theory of lasing action
                                                                                                                                                                                                                                                            • A4255D CO 2 lasers
                                                                                                                                                                                                                                                            • A4255F Inert gas lasers
                                                                                                                                                                                                                                                            • A4255G Excimer lasers
                                                                                                                                                                                                                                                            • A4255H Lasing action in other gas lasers
                                                                                                                                                                                                                                                            • A4255K Chemical lasers
                                                                                                                                                                                                                                                            • A4255M Lasing action in liquids and organic dyes
                                                                                                                                                                                                                                                            • A4255N Fibre lasers and amplifiers
                                                                                                                                                                                                                                                            • A4255P Lasing action in semiconductors
                                                                                                                                                                                                                                                            • A4255Q Laser-active defect centres in solids
                                                                                                                                                                                                                                                            • A4255R Lasing action in other solids
                                                                                                                                                                                                                                                            • A4255T Free electron lasers
                                                                                                                                                                                                                                                            • A4255V High energy lasing processes (e.g. gamma and X-ray lasers)
                                                                                                                                                                                                                                                          • A4260 Laser optical systems: design and operation
                                                                                                                                                                                                                                                            • A4260B Design of specific laser systems
                                                                                                                                                                                                                                                            • A4260D Laser resonators and cavities
                                                                                                                                                                                                                                                            • A4260F Laser beam modulation, pulsing and switching; mode locking and tuning
                                                                                                                                                                                                                                                            • A4260H Laser beam characteristics and interactions
                                                                                                                                                                                                                                                            • A4262A Laser materials processing
                                                                                                                                                                                                                                                            • A4262E Metrological applications of lasers
                                                                                                                                                                                                                                                            • A4265B General theory of nonlinear optics
                                                                                                                                                                                                                                                            • A4265C Stimulated Raman scattering and spectra; CARS; stimulated Brillouin and stimulated Rayleigh scattering and spectra
                                                                                                                                                                                                                                                            • A4265F Optical phase conjugation
                                                                                                                                                                                                                                                            • A4265G Optical transient phenomena, self-induced transparency, optical saturation and related effects
                                                                                                                                                                                                                                                            • A4265J Beam trapping, self focusing, thermal blooming, and related effects
                                                                                                                                                                                                                                                            • A4265K Optical harmonic generation, frequency conversion, parametric oscillation and amplification
                                                                                                                                                                                                                                                            • A4265M Multiwave mixing
                                                                                                                                                                                                                                                            • A4265P Optical bistability, multistability and switching
                                                                                                                                                                                                                                                            • A4265S Optical solitons
                                                                                                                                                                                                                                                            • A4265T Optical chaos and related effects
                                                                                                                                                                                                                                                          • A4262 Laser applications
                                                                                                                                                                                                                                                            • A4262A Laser materials processing
                                                                                                                                                                                                                                                            • A4262E Metrological applications of lasers
                                                                                                                                                                                                                                                          • A4265 Nonlinear optics
                                                                                                                                                                                                                                                            • A4265B General theory of nonlinear optics
                                                                                                                                                                                                                                                            • A4265C Stimulated Raman scattering and spectra; CARS; stimulated Brillouin and stimulated Rayleigh scattering and spectra
                                                                                                                                                                                                                                                            • A4265F Optical phase conjugation
                                                                                                                                                                                                                                                            • A4265G Optical transient phenomena, self-induced transparency, optical saturation and related effects
                                                                                                                                                                                                                                                            • A4265J Beam trapping, self focusing, thermal blooming, and related effects
                                                                                                                                                                                                                                                            • A4265K Optical harmonic generation, frequency conversion, parametric oscillation and amplification
                                                                                                                                                                                                                                                            • A4265M Multiwave mixing
                                                                                                                                                                                                                                                            • A4265P Optical bistability, multistability and switching
                                                                                                                                                                                                                                                            • A4265S Optical solitons
                                                                                                                                                                                                                                                            • A4265T Optical chaos and related effects
                                                                                                                                                                                                                                                          • A4270 Optical materials
                                                                                                                                                                                                                                                            • A4270C Optical glass
                                                                                                                                                                                                                                                            • A4270D Liquid crystals (optical materials)
                                                                                                                                                                                                                                                            • A4270E Quartz (optical materials)
                                                                                                                                                                                                                                                            • A4270G Light-sensitive materials
                                                                                                                                                                                                                                                            • A4270J Optical polymers and other organic optical materials
                                                                                                                                                                                                                                                            • A4270Q Photonic bandgap materials
                                                                                                                                                                                                                                                            • A4270T Optical metamaterials
                                                                                                                                                                                                                                                            • A4270Y Other optical materials
                                                                                                                                                                                                                                                          • A4272 Optical sources and standards
                                                                                                                                                                                                                                                            • A4280 Optical elements, devices and systems
                                                                                                                                                                                                                                                              • A4280A Optical lenses and mirrors
                                                                                                                                                                                                                                                              • A4280B Spatial filters, zone plates, and polarizers
                                                                                                                                                                                                                                                              • A4280C Spectral and other filters
                                                                                                                                                                                                                                                              • A4280D Optical monochromators
                                                                                                                                                                                                                                                              • A4280E Optical shutters, windows, diaphragms, deflectors, choppers, and scanners
                                                                                                                                                                                                                                                              • A4280F Gratings, echelles
                                                                                                                                                                                                                                                              • A4280G Optical prisms and projection systems
                                                                                                                                                                                                                                                              • A4280H Optical beam splitters
                                                                                                                                                                                                                                                              • A4280J Optical collimators and autocollimators
                                                                                                                                                                                                                                                              • A4280K Optical beam modulators
                                                                                                                                                                                                                                                              • A4280L Optical waveguides and couplers
                                                                                                                                                                                                                                                              • A4280M Optical switches
                                                                                                                                                                                                                                                              • A4280N Schlieren devices
                                                                                                                                                                                                                                                              • A4280P Optical rangefinders
                                                                                                                                                                                                                                                              • A4280Q Image detectors, convertors, and intensifiers
                                                                                                                                                                                                                                                              • A4280R Gradient-index (GRIN) devices
                                                                                                                                                                                                                                                              • A4280S Optical communication devices, equipment and systems
                                                                                                                                                                                                                                                              • A4280T Optical storage and retrieval
                                                                                                                                                                                                                                                              • A4280V Optical computers, logic elements, and interconnects
                                                                                                                                                                                                                                                              • A4280W Ultrafast optical techniques
                                                                                                                                                                                                                                                              • A4280X Optical coatings
                                                                                                                                                                                                                                                              • A4280Y Solar collectors, concentrators and control films: optical aspects
                                                                                                                                                                                                                                                              • A4281B Optical fibre fabrication, cladding, splicing, joining
                                                                                                                                                                                                                                                              • A4281C Optical fibre testing and measurement of fibre parameters
                                                                                                                                                                                                                                                              • A4281D Optical propagation, dispersion and attenuation in fibres
                                                                                                                                                                                                                                                              • A4281F Other fibre optical properties
                                                                                                                                                                                                                                                              • A4281H Gradient-index (GRIN) fibre devices and techniques
                                                                                                                                                                                                                                                              • A4281M Fibre couplers and connectors
                                                                                                                                                                                                                                                              • A4281P Fibre optic sensors; fibre gyros
                                                                                                                                                                                                                                                              • A4281W Other fibre optical devices and techniques
                                                                                                                                                                                                                                                              • A4285D Optical fabrication, surface grinding
                                                                                                                                                                                                                                                              • A4285F Optical testing techniques
                                                                                                                                                                                                                                                            • A4281 Fibre optics and fibre waveguides
                                                                                                                                                                                                                                                              • A4281B Optical fibre fabrication, cladding, splicing, joining
                                                                                                                                                                                                                                                              • A4281C Optical fibre testing and measurement of fibre parameters
                                                                                                                                                                                                                                                              • A4281D Optical propagation, dispersion and attenuation in fibres
                                                                                                                                                                                                                                                              • A4281F Other fibre optical properties
                                                                                                                                                                                                                                                              • A4281H Gradient-index (GRIN) fibre devices and techniques
                                                                                                                                                                                                                                                              • A4281M Fibre couplers and connectors
                                                                                                                                                                                                                                                              • A4281P Fibre optic sensors; fibre gyros
                                                                                                                                                                                                                                                              • A4281W Other fibre optical devices and techniques
                                                                                                                                                                                                                                                            • A4282 Integrated optics
                                                                                                                                                                                                                                                              • A4283 Micro-optical devices and technology
                                                                                                                                                                                                                                                                • A4284 Nanophotonic devices and technology
                                                                                                                                                                                                                                                                  • A4285 Optical testing and workshop techniques
                                                                                                                                                                                                                                                                    • A4285D Optical fabrication, surface grinding
                                                                                                                                                                                                                                                                    • A4285F Optical testing techniques
                                                                                                                                                                                                                                                                  • A4290 Other topics in optics
                                                                                                                                                                                                                                                                  • A4300 Acoustics
                                                                                                                                                                                                                                                                    • A4320 General linear acoustics
                                                                                                                                                                                                                                                                      • A4325 Nonlinear acoustics and macrosonics
                                                                                                                                                                                                                                                                        • A4328 Aeroacoustics and atmospheric sound
                                                                                                                                                                                                                                                                          • A4330 Underwater sound
                                                                                                                                                                                                                                                                            • A4337D Thermoacoustics
                                                                                                                                                                                                                                                                            • A4337G Photoacoustics
                                                                                                                                                                                                                                                                          • A4335 Ultrasonics, quantum acoustics, and physical effects of sound
                                                                                                                                                                                                                                                                            • A4337 Acoustic emission
                                                                                                                                                                                                                                                                              • A4337D Thermoacoustics
                                                                                                                                                                                                                                                                              • A4337G Photoacoustics
                                                                                                                                                                                                                                                                            • A4340 Structural acoustics and vibration
                                                                                                                                                                                                                                                                              • A4345 Statistical studies of acoustical response
                                                                                                                                                                                                                                                                                • A4350 Acoustic noise, its effects and control
                                                                                                                                                                                                                                                                                  • A4355 Architectural acoustics
                                                                                                                                                                                                                                                                                    • A4360 Acoustic signal processing
                                                                                                                                                                                                                                                                                      • A4363 Acoustic holography
                                                                                                                                                                                                                                                                                        • A4370 Speech communication
                                                                                                                                                                                                                                                                                          • A4370C Human speech communication
                                                                                                                                                                                                                                                                                          • A4370F Machine-based speech communication
                                                                                                                                                                                                                                                                                        • A4375 Music and musical instruments
                                                                                                                                                                                                                                                                                          • A4385 Acoustical measurements and instrumentation
                                                                                                                                                                                                                                                                                            • A4385D Measurement of acoustic variables
                                                                                                                                                                                                                                                                                            • A4385G Measurement by acoustic techniques
                                                                                                                                                                                                                                                                                          • A4388 Transduction; devices for the generation and reproduction of sound
                                                                                                                                                                                                                                                                                            • A4390 Other topics in acoustics
                                                                                                                                                                                                                                                                                            • A4400 Heat flow, thermal and thermodynamic processes
                                                                                                                                                                                                                                                                                              • A4410 Heat conduction (models, phenomenological description)
                                                                                                                                                                                                                                                                                                • A4425 Heat convection
                                                                                                                                                                                                                                                                                                  • A4430 Heat transfer in inhomogeneous media and through interfaces
                                                                                                                                                                                                                                                                                                    • A4440 Heat radiation
                                                                                                                                                                                                                                                                                                      • A4450 Thermal properties of matter (phenomenology)
                                                                                                                                                                                                                                                                                                        • A4460 Thermodynamic processes (phenomenology)
                                                                                                                                                                                                                                                                                                          • A4490 Other topics in heat flow, thermal and thermodynamic processes
                                                                                                                                                                                                                                                                                                          • A4600 Mechanics, elasticity, rheology
                                                                                                                                                                                                                                                                                                            • A4610 Mechanics of discrete systems
                                                                                                                                                                                                                                                                                                              • A4620 Continuum mechanics
                                                                                                                                                                                                                                                                                                                • A4630 Mechanics of solids
                                                                                                                                                                                                                                                                                                                  • A4630C Elasticity
                                                                                                                                                                                                                                                                                                                  • A4630J Viscoelasticity, plasticity, viscoplasticity, creep, and stress relaxation
                                                                                                                                                                                                                                                                                                                  • A4630L Buckling and instability
                                                                                                                                                                                                                                                                                                                  • A4630M Vibrations, aeroelasticity, hydroelasticity, mechanical waves, and shocks
                                                                                                                                                                                                                                                                                                                  • A4630N Fracture mechanics, fatigue, and cracks
                                                                                                                                                                                                                                                                                                                  • A4630P Friction, wear, adherence, hardness, mechanical contacts
                                                                                                                                                                                                                                                                                                                  • A4630R Mechanical measurement methods and techniques for solids
                                                                                                                                                                                                                                                                                                                • A4660 Rheology of fluids and pastes
                                                                                                                                                                                                                                                                                                                  • A4660B Viscoelasticity of fluids and pastes
                                                                                                                                                                                                                                                                                                                  • A4660D Nonlinearities in rheology of fluids and pastes
                                                                                                                                                                                                                                                                                                                  • A4660F Rheopexy, thixotropy
                                                                                                                                                                                                                                                                                                                  • A4660H Electrorheological and magnetorheological fluids
                                                                                                                                                                                                                                                                                                                • A4690 Other topics in mechanics, elasticity, and rheology
                                                                                                                                                                                                                                                                                                                • A4700 Fluid dynamics
                                                                                                                                                                                                                                                                                                                  • A4710 General fluid dynamics theory, simulation and other computational methods
                                                                                                                                                                                                                                                                                                                    • A4715C Laminar boundary layers
                                                                                                                                                                                                                                                                                                                    • A4715F Stability of laminar flows
                                                                                                                                                                                                                                                                                                                  • A4715 Laminar flows
                                                                                                                                                                                                                                                                                                                    • A4715C Laminar boundary layers
                                                                                                                                                                                                                                                                                                                    • A4715F Stability of laminar flows
                                                                                                                                                                                                                                                                                                                  • A4720 Hydrodynamic stability and instability
                                                                                                                                                                                                                                                                                                                    • A4725C Isotropic turbulence
                                                                                                                                                                                                                                                                                                                    • A4725F Boundary layer and shear turbulence
                                                                                                                                                                                                                                                                                                                    • A4725J Turbulent diffusion
                                                                                                                                                                                                                                                                                                                    • A4725M Noise (turbulence generated)
                                                                                                                                                                                                                                                                                                                    • A4725Q Convection and heat transfer
                                                                                                                                                                                                                                                                                                                    • A4725R Wakes
                                                                                                                                                                                                                                                                                                                  • A4725 Turbulent flows, convection, and heat transfer
                                                                                                                                                                                                                                                                                                                    • A4725C Isotropic turbulence
                                                                                                                                                                                                                                                                                                                    • A4725F Boundary layer and shear turbulence
                                                                                                                                                                                                                                                                                                                    • A4725J Turbulent diffusion
                                                                                                                                                                                                                                                                                                                    • A4725M Noise (turbulence generated)
                                                                                                                                                                                                                                                                                                                    • A4725Q Convection and heat transfer
                                                                                                                                                                                                                                                                                                                    • A4725R Wakes
                                                                                                                                                                                                                                                                                                                  • A4730 Rotational flow, vortices, buoyancy and other flows involving body forces
                                                                                                                                                                                                                                                                                                                    • A4735 Waves in fluid dynamics
                                                                                                                                                                                                                                                                                                                      • A4740 Compressible flows; shock and detonation phenomena
                                                                                                                                                                                                                                                                                                                        • A4740D General subsonic flows
                                                                                                                                                                                                                                                                                                                        • A4740H Transonic flows
                                                                                                                                                                                                                                                                                                                        • A4740K Supersonic and hypersonic flows
                                                                                                                                                                                                                                                                                                                        • A4740N Shock-wave interactions
                                                                                                                                                                                                                                                                                                                        • A4745D Free molecular flows
                                                                                                                                                                                                                                                                                                                        • A4745G Slip flows
                                                                                                                                                                                                                                                                                                                        • A4745N Accommodation in fluid dynamics
                                                                                                                                                                                                                                                                                                                      • A4745 Rarefied gas dynamics
                                                                                                                                                                                                                                                                                                                        • A4745D Free molecular flows
                                                                                                                                                                                                                                                                                                                        • A4745G Slip flows
                                                                                                                                                                                                                                                                                                                        • A4745N Accommodation in fluid dynamics
                                                                                                                                                                                                                                                                                                                      • A4750 Non-Newtonian dynamics
                                                                                                                                                                                                                                                                                                                        • A4755B Cavitation
                                                                                                                                                                                                                                                                                                                        • A4755C Jets in fluid dynamics
                                                                                                                                                                                                                                                                                                                        • A4755E Nozzles
                                                                                                                                                                                                                                                                                                                        • A4755H Stratified flows
                                                                                                                                                                                                                                                                                                                        • A4755K Multiphase flows
                                                                                                                                                                                                                                                                                                                        • A4755M Flow through porous media
                                                                                                                                                                                                                                                                                                                      • A4752 Chaos and fractals in flow
                                                                                                                                                                                                                                                                                                                        • A4754 Pattern selection in flow
                                                                                                                                                                                                                                                                                                                          • A4755 Nonhomogeneous flows
                                                                                                                                                                                                                                                                                                                            • A4755B Cavitation
                                                                                                                                                                                                                                                                                                                            • A4755C Jets in fluid dynamics
                                                                                                                                                                                                                                                                                                                            • A4755E Nozzles
                                                                                                                                                                                                                                                                                                                            • A4755H Stratified flows
                                                                                                                                                                                                                                                                                                                            • A4755K Multiphase flows
                                                                                                                                                                                                                                                                                                                            • A4755M Flow through porous media
                                                                                                                                                                                                                                                                                                                          • A4760 Flows in ducts, channels, and conduits
                                                                                                                                                                                                                                                                                                                            • A4762 Flow control
                                                                                                                                                                                                                                                                                                                              • A4765 Magnetohydrodynamics and electrohydrodynamics
                                                                                                                                                                                                                                                                                                                                • A4770 Reactive, radiative, or nonequilibrium flows
                                                                                                                                                                                                                                                                                                                                  • A4770F Chemically reactive flows
                                                                                                                                                                                                                                                                                                                                  • A4770M Radiation gas dynamics
                                                                                                                                                                                                                                                                                                                                • A4775 Relativistic fluid dynamics
                                                                                                                                                                                                                                                                                                                                  • A4780 Measurement instrumentation and techniques for fluid dynamics
                                                                                                                                                                                                                                                                                                                                    • A4780A Flow visualization and imaging
                                                                                                                                                                                                                                                                                                                                  • A4785 Applied fluid mechanics
                                                                                                                                                                                                                                                                                                                                    • A4787 Microfluidics and nanofluidics
                                                                                                                                                                                                                                                                                                                                      • A4790 Other topics in fluid dynamics
                                                                                                                                                                                                                                                                                                                                    • A5000 Fluids, plasmas and electric discharges
                                                                                                                                                                                                                                                                                                                                      • A5100 Kinetic and transport theory of fluids; physical properties of gases
                                                                                                                                                                                                                                                                                                                                        • A5110 Kinetic and transport theory of gases
                                                                                                                                                                                                                                                                                                                                          • A5120 Viscosity and diffusion in gases: experimental
                                                                                                                                                                                                                                                                                                                                            • A5130 Thermal properties of gases
                                                                                                                                                                                                                                                                                                                                              • A5140 Acoustical properties of gases; ultrasonic relaxation
                                                                                                                                                                                                                                                                                                                                                • A5150 Electrical phenomena in gases
                                                                                                                                                                                                                                                                                                                                                  • A5160 Magnetic phenomena in gases
                                                                                                                                                                                                                                                                                                                                                    • A5170 Optical phenomena in gases
                                                                                                                                                                                                                                                                                                                                                      • A5190 Other topics in the physics of fluids
                                                                                                                                                                                                                                                                                                                                                      • A5200 The physics of plasmas and electric discharges
                                                                                                                                                                                                                                                                                                                                                        • A5220 Elementary processes in plasma
                                                                                                                                                                                                                                                                                                                                                          • A5220D Particle orbits in plasma
                                                                                                                                                                                                                                                                                                                                                          • A5220F Electron collisions in plasma
                                                                                                                                                                                                                                                                                                                                                          • A5220H Atomic, molecular, ion and heavy particle collisions in plasma
                                                                                                                                                                                                                                                                                                                                                          • A5225D Plasma kinetic equations
                                                                                                                                                                                                                                                                                                                                                          • A5225F Plasma transport properties
                                                                                                                                                                                                                                                                                                                                                          • A5225G Plasma fluctuation phenomena
                                                                                                                                                                                                                                                                                                                                                          • A5225K Thermodynamics of plasmas
                                                                                                                                                                                                                                                                                                                                                          • A5225L Plasma temperature and density
                                                                                                                                                                                                                                                                                                                                                          • A5225M Plasma dielectric properties
                                                                                                                                                                                                                                                                                                                                                          • A5225P Emission, absorption, and scattering of radiation in plasma
                                                                                                                                                                                                                                                                                                                                                          • A5225V Impurities in plasma
                                                                                                                                                                                                                                                                                                                                                          • A5225W Nonneutral plasmas
                                                                                                                                                                                                                                                                                                                                                          • A5225Z Dusty plasmas and plasma crystals
                                                                                                                                                                                                                                                                                                                                                        • A5225 Plasma properties
                                                                                                                                                                                                                                                                                                                                                          • A5225D Plasma kinetic equations
                                                                                                                                                                                                                                                                                                                                                          • A5225F Plasma transport properties
                                                                                                                                                                                                                                                                                                                                                          • A5225G Plasma fluctuation phenomena
                                                                                                                                                                                                                                                                                                                                                          • A5225K Thermodynamics of plasmas
                                                                                                                                                                                                                                                                                                                                                          • A5225L Plasma temperature and density
                                                                                                                                                                                                                                                                                                                                                          • A5225M Plasma dielectric properties
                                                                                                                                                                                                                                                                                                                                                          • A5225P Emission, absorption, and scattering of radiation in plasma
                                                                                                                                                                                                                                                                                                                                                          • A5225V Impurities in plasma
                                                                                                                                                                                                                                                                                                                                                          • A5225W Nonneutral plasmas
                                                                                                                                                                                                                                                                                                                                                          • A5225Z Dusty plasmas and plasma crystals
                                                                                                                                                                                                                                                                                                                                                        • A5230 Plasma flow; magnetohydrodynamics
                                                                                                                                                                                                                                                                                                                                                          • A5235B Plasma magnetohydrodynamic waves, Alfven and hydromagnetic waves
                                                                                                                                                                                                                                                                                                                                                          • A5235D Plasma sound waves, magnetosonic waves
                                                                                                                                                                                                                                                                                                                                                          • A5235F Plasma electrostatic waves and oscillations
                                                                                                                                                                                                                                                                                                                                                          • A5235H Plasma electromagnetic waves
                                                                                                                                                                                                                                                                                                                                                          • A5235K Plasma drift waves
                                                                                                                                                                                                                                                                                                                                                          • A5235M Nonlinear plasma waves and nonlinear interactions
                                                                                                                                                                                                                                                                                                                                                          • A5235P Plasma instabilities
                                                                                                                                                                                                                                                                                                                                                          • A5235R Plasma turbulence
                                                                                                                                                                                                                                                                                                                                                          • A5235S Plasma solitons
                                                                                                                                                                                                                                                                                                                                                          • A5235T Shock waves in plasma
                                                                                                                                                                                                                                                                                                                                                        • A5235 Waves, oscillations, and instabilities in plasma
                                                                                                                                                                                                                                                                                                                                                          • A5235B Plasma magnetohydrodynamic waves, Alfven and hydromagnetic waves
                                                                                                                                                                                                                                                                                                                                                          • A5235D Plasma sound waves, magnetosonic waves
                                                                                                                                                                                                                                                                                                                                                          • A5235F Plasma electrostatic waves and oscillations
                                                                                                                                                                                                                                                                                                                                                          • A5235H Plasma electromagnetic waves
                                                                                                                                                                                                                                                                                                                                                          • A5235K Plasma drift waves
                                                                                                                                                                                                                                                                                                                                                          • A5235M Nonlinear plasma waves and nonlinear interactions
                                                                                                                                                                                                                                                                                                                                                          • A5235P Plasma instabilities
                                                                                                                                                                                                                                                                                                                                                          • A5235R Plasma turbulence
                                                                                                                                                                                                                                                                                                                                                          • A5235S Plasma solitons
                                                                                                                                                                                                                                                                                                                                                          • A5235T Shock waves in plasma
                                                                                                                                                                                                                                                                                                                                                        • A5240 Plasma interactions
                                                                                                                                                                                                                                                                                                                                                          • A5240D Electromagnetic wave propagation in plasma
                                                                                                                                                                                                                                                                                                                                                          • A5240F Antennas in plasma; plasma-filled wave guides
                                                                                                                                                                                                                                                                                                                                                          • A5240H Solid state-plasma interactions
                                                                                                                                                                                                                                                                                                                                                          • A5240K Plasma sheaths
                                                                                                                                                                                                                                                                                                                                                          • A5240M Particle beam interactions in plasma
                                                                                                                                                                                                                                                                                                                                                        • A5250 Plasma production and heating
                                                                                                                                                                                                                                                                                                                                                          • A5250D Plasma sources
                                                                                                                                                                                                                                                                                                                                                          • A5250G Plasma heating
                                                                                                                                                                                                                                                                                                                                                          • A5250J Plasma production and heating by laser beams
                                                                                                                                                                                                                                                                                                                                                          • A5250L Plasma production and heating by shock waves and compression
                                                                                                                                                                                                                                                                                                                                                          • A5255D General theory of plasma confinement
                                                                                                                                                                                                                                                                                                                                                          • A5255E Pinch effect and pinch machines
                                                                                                                                                                                                                                                                                                                                                          • A5255G Plasma in torus (stellarator, tokamak, etc.)
                                                                                                                                                                                                                                                                                                                                                          • A5255K Magnetic traps (e.g., Astron, helitron, mirror, cusp, etc.)
                                                                                                                                                                                                                                                                                                                                                          • A5255M Nonmagnetic plasma confinement systems (e.g. electrostatic, inertial, high frequency and laser confinement, etc.)
                                                                                                                                                                                                                                                                                                                                                          • A5255P Confinement in fusion experiments
                                                                                                                                                                                                                                                                                                                                                        • A5255 Plasma equilibrium and confinement
                                                                                                                                                                                                                                                                                                                                                          • A5255D General theory of plasma confinement
                                                                                                                                                                                                                                                                                                                                                          • A5255E Pinch effect and pinch machines
                                                                                                                                                                                                                                                                                                                                                          • A5255G Plasma in torus (stellarator, tokamak, etc.)
                                                                                                                                                                                                                                                                                                                                                          • A5255K Magnetic traps (e.g., Astron, helitron, mirror, cusp, etc.)
                                                                                                                                                                                                                                                                                                                                                          • A5255M Nonmagnetic plasma confinement systems (e.g. electrostatic, inertial, high frequency and laser confinement, etc.)
                                                                                                                                                                                                                                                                                                                                                          • A5255P Confinement in fusion experiments
                                                                                                                                                                                                                                                                                                                                                        • A5260 Relativistic plasma
                                                                                                                                                                                                                                                                                                                                                          • A5265 Plasma simulation
                                                                                                                                                                                                                                                                                                                                                            • A5270 Plasma diagnostic techniques and instrumentation
                                                                                                                                                                                                                                                                                                                                                              • A5270D Electric and magnetic plasma diagnostic techniques, probes
                                                                                                                                                                                                                                                                                                                                                              • A5270G Radiofrequency and microwave plasma diagnostic techniques
                                                                                                                                                                                                                                                                                                                                                              • A5270K Optical (ultraviolet, visible, infrared) plasma diagnostic techniques
                                                                                                                                                                                                                                                                                                                                                              • A5270L X-ray and gamma-ray plasma diagnostic techniques
                                                                                                                                                                                                                                                                                                                                                              • A5270N Particle plasma diagnostic techniques
                                                                                                                                                                                                                                                                                                                                                              • A5275D Accelerators and propulsion using plasma
                                                                                                                                                                                                                                                                                                                                                              • A5275F Magnetohydrodynamic generators and thermionic convertors
                                                                                                                                                                                                                                                                                                                                                              • A5275H Plasma torches
                                                                                                                                                                                                                                                                                                                                                              • A5275K Plasma switches
                                                                                                                                                                                                                                                                                                                                                              • A5275P Plasma diodes
                                                                                                                                                                                                                                                                                                                                                              • A5275R Plasma applications in manufacturing and materials processing
                                                                                                                                                                                                                                                                                                                                                            • A5275 Plasma devices and applications
                                                                                                                                                                                                                                                                                                                                                              • A5275D Accelerators and propulsion using plasma
                                                                                                                                                                                                                                                                                                                                                              • A5275F Magnetohydrodynamic generators and thermionic convertors
                                                                                                                                                                                                                                                                                                                                                              • A5275H Plasma torches
                                                                                                                                                                                                                                                                                                                                                              • A5275K Plasma switches
                                                                                                                                                                                                                                                                                                                                                              • A5275P Plasma diodes
                                                                                                                                                                                                                                                                                                                                                              • A5275R Plasma applications in manufacturing and materials processing
                                                                                                                                                                                                                                                                                                                                                            • A5280 Electric discharges
                                                                                                                                                                                                                                                                                                                                                              • A5280D Low-field and Townsend discharges
                                                                                                                                                                                                                                                                                                                                                              • A5280F Dielectric-barrier discharges
                                                                                                                                                                                                                                                                                                                                                              • A5280H Glow and corona discharges
                                                                                                                                                                                                                                                                                                                                                              • A5280M Arcs and sparks
                                                                                                                                                                                                                                                                                                                                                              • A5280P High-frequency discharges
                                                                                                                                                                                                                                                                                                                                                              • A5280Q Explosions (electrical discharges)
                                                                                                                                                                                                                                                                                                                                                              • A5280S Magnetoactive and Penning discharges
                                                                                                                                                                                                                                                                                                                                                              • A5280V Discharges in vacuum
                                                                                                                                                                                                                                                                                                                                                              • A5280W Discharges and electric breakdown in liquids
                                                                                                                                                                                                                                                                                                                                                              • A5280Y Discharge methods for spectral sources
                                                                                                                                                                                                                                                                                                                                                            • A5290 Other topics in plasma physics and electric discharges
                                                                                                                                                                                                                                                                                                                                                          • A6000 Condensed matter: structure, thermal and mechanical properties
                                                                                                                                                                                                                                                                                                                                                            • A6100 Structure of liquids and solids; crystallography
                                                                                                                                                                                                                                                                                                                                                              • A6110 X-ray determination of structures
                                                                                                                                                                                                                                                                                                                                                                • A6110D Theories of X-ray diffraction and scattering
                                                                                                                                                                                                                                                                                                                                                                • A6110F Experimental X-ray diffraction and scattering techniques
                                                                                                                                                                                                                                                                                                                                                                • A6110M Crystal structure solution and refinement techniques using X-rays
                                                                                                                                                                                                                                                                                                                                                                • A6112B Theories of neutron diffraction and scattering
                                                                                                                                                                                                                                                                                                                                                                • A6112E Neutron scattering techniques
                                                                                                                                                                                                                                                                                                                                                                • A6112G Neutron diffraction techniques
                                                                                                                                                                                                                                                                                                                                                                • A6114D Theories of electron diffraction and scattering
                                                                                                                                                                                                                                                                                                                                                                • A6114F Experimental electron diffraction and scattering
                                                                                                                                                                                                                                                                                                                                                                • A6114H Low-energy electron diffraction (LEED) and reflection high-energy electron diffraction (RHEED)
                                                                                                                                                                                                                                                                                                                                                                • A6114R Other electron diffraction and scattering techniques
                                                                                                                                                                                                                                                                                                                                                                • A6116D Electron microscopy determinations of structures
                                                                                                                                                                                                                                                                                                                                                                • A6116F Field-ion microscopy determinations of structures; atom and ion scattering techniques
                                                                                                                                                                                                                                                                                                                                                                • A6116N EPR and NMR determinations of structures; Mössbauer spectroscopy
                                                                                                                                                                                                                                                                                                                                                                • A6116P Scanning probe microscopy determinations of structures
                                                                                                                                                                                                                                                                                                                                                              • A6112 Neutron determination of structures
                                                                                                                                                                                                                                                                                                                                                                • A6112B Theories of neutron diffraction and scattering
                                                                                                                                                                                                                                                                                                                                                                • A6112E Neutron scattering techniques
                                                                                                                                                                                                                                                                                                                                                                • A6112G Neutron diffraction techniques
                                                                                                                                                                                                                                                                                                                                                              • A6114 Electron determination of structures
                                                                                                                                                                                                                                                                                                                                                                • A6114D Theories of electron diffraction and scattering
                                                                                                                                                                                                                                                                                                                                                                • A6114F Experimental electron diffraction and scattering
                                                                                                                                                                                                                                                                                                                                                                • A6114H Low-energy electron diffraction (LEED) and reflection high-energy electron diffraction (RHEED)
                                                                                                                                                                                                                                                                                                                                                                • A6114R Other electron diffraction and scattering techniques
                                                                                                                                                                                                                                                                                                                                                              • A6116 Other determination of structures
                                                                                                                                                                                                                                                                                                                                                                • A6116D Electron microscopy determinations of structures
                                                                                                                                                                                                                                                                                                                                                                • A6116F Field-ion microscopy determinations of structures; atom and ion scattering techniques
                                                                                                                                                                                                                                                                                                                                                                • A6116N EPR and NMR determinations of structures; Mössbauer spectroscopy
                                                                                                                                                                                                                                                                                                                                                                • A6116P Scanning probe microscopy determinations of structures
                                                                                                                                                                                                                                                                                                                                                              • A6120 Classical, semiclassical, and quantum theories of liquid structure
                                                                                                                                                                                                                                                                                                                                                                • A6120G Statistical theories of liquid structure
                                                                                                                                                                                                                                                                                                                                                                • A6120J Computer simulation of static and dynamic liquid behaviour
                                                                                                                                                                                                                                                                                                                                                                • A6120L Time-dependent properties of liquid structure
                                                                                                                                                                                                                                                                                                                                                                • A6120N Structure of simple liquids
                                                                                                                                                                                                                                                                                                                                                                • A6120Q Structure of associated liquids
                                                                                                                                                                                                                                                                                                                                                                • A6125B Structure of liquid noble gases
                                                                                                                                                                                                                                                                                                                                                                • A6125E Structure of molecular liquids
                                                                                                                                                                                                                                                                                                                                                                • A6125H Structure of macromolecular and polymer solutions (solubility, swelling, etc.); polymer melts
                                                                                                                                                                                                                                                                                                                                                                • A6125K Structure of molten salts
                                                                                                                                                                                                                                                                                                                                                                • A6125M Structure of liquid metals and liquid alloys
                                                                                                                                                                                                                                                                                                                                                              • A6125 Studies of specific liquid structures
                                                                                                                                                                                                                                                                                                                                                                • A6125B Structure of liquid noble gases
                                                                                                                                                                                                                                                                                                                                                                • A6125E Structure of molecular liquids
                                                                                                                                                                                                                                                                                                                                                                • A6125H Structure of macromolecular and polymer solutions (solubility, swelling, etc.); polymer melts
                                                                                                                                                                                                                                                                                                                                                                • A6125K Structure of molten salts
                                                                                                                                                                                                                                                                                                                                                                • A6125M Structure of liquid metals and liquid alloys
                                                                                                                                                                                                                                                                                                                                                              • A6130 Liquid crystals
                                                                                                                                                                                                                                                                                                                                                                • A6130B Molecular theories of liquid crystals
                                                                                                                                                                                                                                                                                                                                                                • A6130C Microstructure theory of liquid crystals (continuum, swarm theories)
                                                                                                                                                                                                                                                                                                                                                                • A6130E Experimental determinations of smectic, nematic, cholesteric, and lyotropic structures
                                                                                                                                                                                                                                                                                                                                                                • A6130G Orientational order of liquid crystals in electric and magnetic fields
                                                                                                                                                                                                                                                                                                                                                                • A6130J Defects in liquid crystals
                                                                                                                                                                                                                                                                                                                                                              • A6140 Structure of amorphous, disordered and polymeric materials
                                                                                                                                                                                                                                                                                                                                                                • A6140D Structure of glasses
                                                                                                                                                                                                                                                                                                                                                                • A6140G Structure of powders and porous materials
                                                                                                                                                                                                                                                                                                                                                                • A6140K Structure of polymers, elastomers, and plastics
                                                                                                                                                                                                                                                                                                                                                                • A6140M Structure of quasicrystals
                                                                                                                                                                                                                                                                                                                                                              • A6146 Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials
                                                                                                                                                                                                                                                                                                                                                                • A6148 Structure of graphene and graphene-related materials
                                                                                                                                                                                                                                                                                                                                                                  • A6150 Crystalline state
                                                                                                                                                                                                                                                                                                                                                                    • A6150C Physics of crystal growth
                                                                                                                                                                                                                                                                                                                                                                    • A6150E Crystal symmetry; models and space groups, and crystalline systems and classes
                                                                                                                                                                                                                                                                                                                                                                    • A6150J Crystal morphology and orientation
                                                                                                                                                                                                                                                                                                                                                                    • A6150K Crystallographic aspects of polymorphic and order-disorder transformations
                                                                                                                                                                                                                                                                                                                                                                    • A6150L Crystal binding
                                                                                                                                                                                                                                                                                                                                                                    • A6155D Crystal structure of specific nonmetallic elements
                                                                                                                                                                                                                                                                                                                                                                    • A6155F Crystal structure of specific metallic elements
                                                                                                                                                                                                                                                                                                                                                                    • A6155H Crystal structure of specific alloys
                                                                                                                                                                                                                                                                                                                                                                  • A6155 Crystal structure of specific elements and alloys
                                                                                                                                                                                                                                                                                                                                                                    • A6155D Crystal structure of specific nonmetallic elements
                                                                                                                                                                                                                                                                                                                                                                    • A6155F Crystal structure of specific metallic elements
                                                                                                                                                                                                                                                                                                                                                                    • A6155H Crystal structure of specific alloys
                                                                                                                                                                                                                                                                                                                                                                  • A6160 Crystal structure of specific inorganic compounds
                                                                                                                                                                                                                                                                                                                                                                    • A6165 Crystal structure of specific organic compounds
                                                                                                                                                                                                                                                                                                                                                                      • A6170 Defects in crystals
                                                                                                                                                                                                                                                                                                                                                                        • A6170A Annealing processes
                                                                                                                                                                                                                                                                                                                                                                        • A6170B Interstitials and vacancies
                                                                                                                                                                                                                                                                                                                                                                        • A6170D Colour centres
                                                                                                                                                                                                                                                                                                                                                                        • A6170E Other point defects
                                                                                                                                                                                                                                                                                                                                                                        • A6170G Dislocations: theory
                                                                                                                                                                                                                                                                                                                                                                        • A6170J Etch pits, decoration, transmission electron-microscopy and other direct observations of dislocations
                                                                                                                                                                                                                                                                                                                                                                        • A6170L Slip, creep, internal friction and other indirect evidence of dislocations
                                                                                                                                                                                                                                                                                                                                                                        • A6170N Grain and twin boundaries
                                                                                                                                                                                                                                                                                                                                                                        • A6170P Stacking faults, stacking fault tetrahedra and other planar or extended defects
                                                                                                                                                                                                                                                                                                                                                                        • A6170Q Inclusions and voids
                                                                                                                                                                                                                                                                                                                                                                        • A6170R Crystal impurities: general
                                                                                                                                                                                                                                                                                                                                                                        • A6170T Doping and implantation of impurities
                                                                                                                                                                                                                                                                                                                                                                        • A6170W Impurity concentration, distribution, and gradients
                                                                                                                                                                                                                                                                                                                                                                        • A6170Y Interaction between different crystal structure defects
                                                                                                                                                                                                                                                                                                                                                                      • A6180 Radiation damage and other irradiation effects
                                                                                                                                                                                                                                                                                                                                                                        • A6180B Ultraviolet, visible and infrared radiation effects
                                                                                                                                                                                                                                                                                                                                                                        • A6180C X-ray effects
                                                                                                                                                                                                                                                                                                                                                                        • A6180E Gamma ray effects
                                                                                                                                                                                                                                                                                                                                                                        • A6180F Electron and positron effects
                                                                                                                                                                                                                                                                                                                                                                        • A6180H Neutron effects
                                                                                                                                                                                                                                                                                                                                                                        • A6180J Ion beam effects
                                                                                                                                                                                                                                                                                                                                                                        • A6180L Atomic and molecular irradiation effects
                                                                                                                                                                                                                                                                                                                                                                        • A6180M Channelling, blocking and energy loss of particles
                                                                                                                                                                                                                                                                                                                                                                      • A6185 Modelling and computer simulation of solid structure
                                                                                                                                                                                                                                                                                                                                                                        • A6190 Other topics in structure of liquids and solids
                                                                                                                                                                                                                                                                                                                                                                        • A6200 Mechanical and acoustic properties of condensed matter
                                                                                                                                                                                                                                                                                                                                                                          • A6210 Mechanical properties of liquids
                                                                                                                                                                                                                                                                                                                                                                            • A6220 Mechanical properties of solids (related to microscopic structure)
                                                                                                                                                                                                                                                                                                                                                                              • A6220D Elasticity, elastic constants
                                                                                                                                                                                                                                                                                                                                                                              • A6220F Deformation and plasticity
                                                                                                                                                                                                                                                                                                                                                                              • A6220H Creep
                                                                                                                                                                                                                                                                                                                                                                              • A6220M Fatigue, brittleness, fracture, and cracks
                                                                                                                                                                                                                                                                                                                                                                              • A6220P Tribology
                                                                                                                                                                                                                                                                                                                                                                            • A6230 Mechanical and elastic waves
                                                                                                                                                                                                                                                                                                                                                                              • A6240 Anelasticity, internal friction and mechanical resonances
                                                                                                                                                                                                                                                                                                                                                                                • A6250 High-pressure and shock-wave effects in solids and liquids
                                                                                                                                                                                                                                                                                                                                                                                  • A6260 Acoustic properties of liquids
                                                                                                                                                                                                                                                                                                                                                                                    • A6265 Acoustic properties of solids
                                                                                                                                                                                                                                                                                                                                                                                      • A6280 Ultrasonic relaxation in condensed matter
                                                                                                                                                                                                                                                                                                                                                                                        • A6290 Other topics in mechanical and acoustical properties of condensed matter
                                                                                                                                                                                                                                                                                                                                                                                        • A6300 Lattice dynamics and crystal statistics
                                                                                                                                                                                                                                                                                                                                                                                          • A6310 General theory of lattice dynamics and crystal statistics
                                                                                                                                                                                                                                                                                                                                                                                            • A6320 Phonons and vibrations in crystal lattices
                                                                                                                                                                                                                                                                                                                                                                                              • A6320D Phonon states and bands, normal modes, and phonon dispersion
                                                                                                                                                                                                                                                                                                                                                                                              • A6320H Phonon-phonon interactions
                                                                                                                                                                                                                                                                                                                                                                                              • A6320K Phonon-electron interactions
                                                                                                                                                                                                                                                                                                                                                                                              • A6320L Phonon interactions with quasi-particles
                                                                                                                                                                                                                                                                                                                                                                                              • A6320M Phonon-defect interactions
                                                                                                                                                                                                                                                                                                                                                                                              • A6320P Localized modes in crystal lattices
                                                                                                                                                                                                                                                                                                                                                                                              • A6320R Anharmonic lattice modes
                                                                                                                                                                                                                                                                                                                                                                                            • A6322 Phonons in low-dimensional structures and small particles
                                                                                                                                                                                                                                                                                                                                                                                              • A6350 Vibrational states in disordered systems
                                                                                                                                                                                                                                                                                                                                                                                                • A6370 Statistical mechanics of lattice vibrations
                                                                                                                                                                                                                                                                                                                                                                                                  • A6375 Statistical mechanics of displacive phase-transitions
                                                                                                                                                                                                                                                                                                                                                                                                    • A6390 Other topics in lattice dynamics and crystal statistics
                                                                                                                                                                                                                                                                                                                                                                                                    • A6400 Equations of state, phase equilibria, and phase transitions
                                                                                                                                                                                                                                                                                                                                                                                                      • A6410 General theory of equations of state and phase equilibria
                                                                                                                                                                                                                                                                                                                                                                                                        • A6430 Equations of state of specific substances
                                                                                                                                                                                                                                                                                                                                                                                                          • A6460 General studies of phase transitions
                                                                                                                                                                                                                                                                                                                                                                                                            • A6460A Renormalization group, fractal and percolation studies of phase transitions
                                                                                                                                                                                                                                                                                                                                                                                                            • A6460C Order-disorder and statistical mechanics of model systems
                                                                                                                                                                                                                                                                                                                                                                                                            • A6460F Equilibrium properties near critical points, critical exponents
                                                                                                                                                                                                                                                                                                                                                                                                            • A6460H Dynamic critical phenomena
                                                                                                                                                                                                                                                                                                                                                                                                            • A6460K Multicritical points
                                                                                                                                                                                                                                                                                                                                                                                                            • A6460M Metastable phases
                                                                                                                                                                                                                                                                                                                                                                                                            • A6460Q Nucleation in phase transitions
                                                                                                                                                                                                                                                                                                                                                                                                          • A6470 Phase equilibria, phase transitions, and critical points
                                                                                                                                                                                                                                                                                                                                                                                                            • A6470D Solid-liquid transitions
                                                                                                                                                                                                                                                                                                                                                                                                            • A6470F Liquid-vapour transitions
                                                                                                                                                                                                                                                                                                                                                                                                            • A6470H Solid-vapour transitions
                                                                                                                                                                                                                                                                                                                                                                                                            • A6470J Liquid-liquid transitions
                                                                                                                                                                                                                                                                                                                                                                                                            • A6470K Solid-solid transitions
                                                                                                                                                                                                                                                                                                                                                                                                            • A6470M Transitions in liquid crystals
                                                                                                                                                                                                                                                                                                                                                                                                            • A6470P Glass transitions
                                                                                                                                                                                                                                                                                                                                                                                                            • A6470R Commensurate-incommensurate transitions
                                                                                                                                                                                                                                                                                                                                                                                                          • A6475 Solubility, segregation, and mixing
                                                                                                                                                                                                                                                                                                                                                                                                            • A6480 Other phase properties of systems
                                                                                                                                                                                                                                                                                                                                                                                                              • A6480E Stoichiometry and homogeneity
                                                                                                                                                                                                                                                                                                                                                                                                              • A6480G Microstructure
                                                                                                                                                                                                                                                                                                                                                                                                            • A6490 Other topics in equations of state, phase equilibria, and phase transitions
                                                                                                                                                                                                                                                                                                                                                                                                            • A6500 Thermal properties of condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                              • A6520 Heat capacities of liquids
                                                                                                                                                                                                                                                                                                                                                                                                                • A6540 Heat capacities of solids
                                                                                                                                                                                                                                                                                                                                                                                                                  • A6540E Lattice and electronic heat capacity of solids
                                                                                                                                                                                                                                                                                                                                                                                                                  • A6540H Lambda, Schottky and other anomalies in solids
                                                                                                                                                                                                                                                                                                                                                                                                                • A6550 Thermodynamic properties and entropy
                                                                                                                                                                                                                                                                                                                                                                                                                  • A6570 Thermal expansion and thermomechanical effects
                                                                                                                                                                                                                                                                                                                                                                                                                    • A6590 Other topics in thermal properties of condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                                    • A6600 Transport properties of condensed matter (nonelectronic)
                                                                                                                                                                                                                                                                                                                                                                                                                      • A6610 Diffusion and ionic conduction in liquids
                                                                                                                                                                                                                                                                                                                                                                                                                        • A6610C Diffusion and thermal diffusion in liquids
                                                                                                                                                                                                                                                                                                                                                                                                                        • A6610E Ionic conduction in liquids
                                                                                                                                                                                                                                                                                                                                                                                                                      • A6620 Viscosity of liquids; diffusive momentum transport
                                                                                                                                                                                                                                                                                                                                                                                                                        • A6630 Diffusion and ionic conduction in solids
                                                                                                                                                                                                                                                                                                                                                                                                                          • A6630D Theory of diffusion and ionic conduction in solids
                                                                                                                                                                                                                                                                                                                                                                                                                          • A6630F Self-diffusion in solid metals, semimetals, and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                          • A6630H Self-diffusion and ionic conduction in solid nonmetals
                                                                                                                                                                                                                                                                                                                                                                                                                          • A6630J Diffusion, migration, and displacement of impurities in solids
                                                                                                                                                                                                                                                                                                                                                                                                                          • A6630L Diffusion, migration, and displacement of other defects in solids
                                                                                                                                                                                                                                                                                                                                                                                                                          • A6630N Chemical interdiffusion in solids
                                                                                                                                                                                                                                                                                                                                                                                                                          • A6630Q Electromigration in solids
                                                                                                                                                                                                                                                                                                                                                                                                                        • A6660 Thermal conduction in nonmetallic liquids
                                                                                                                                                                                                                                                                                                                                                                                                                          • A6670 Nonelectronic thermal conduction and heat-pulse propagation in nonmetallic solids
                                                                                                                                                                                                                                                                                                                                                                                                                            • A6690 Other topics in nonelectronic transport properties
                                                                                                                                                                                                                                                                                                                                                                                                                            • A6700 Quantum fluids and solids; liquid and solid helium
                                                                                                                                                                                                                                                                                                                                                                                                                              • A6720 Quantum effects on the structure and dynamics of nondegenerate fluids
                                                                                                                                                                                                                                                                                                                                                                                                                                • A6740 Boson degeneracy and superfluidity of helium-4
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6740B Phenomenology and two fluid models (liquid helium-4)
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6740D Quantum statistical theory; ground state, elementary excitations (liquid helium-4)
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6740F Dynamics of relaxation phenomena (liquid helium-4)
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6740H Hydrodynamics in specific geometries, flow in narrow channels (liquid helium-4)
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6740K Thermodynamic properties (liquid helium-4)
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6740M First sound (liquid helium-4)
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6740P Transport processes, second and other sounds, and thermal counterflow (liquid helium-4)
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6740R Films and weak link transport (liquid helium-4)
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6740V Vortices and turbulence (liquid helium-4)
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6740X Impurities and other defects (liquid helium-4)
                                                                                                                                                                                                                                                                                                                                                                                                                                • A6750 Fermi fluids; liquid helium-3
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6750D Normal phase liquid helium-3
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6750F Superfluid phase liquid helium-3
                                                                                                                                                                                                                                                                                                                                                                                                                                • A6760 Mixed systems; liquid helium 3-4 mixtures
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6760D Liquid He I- 3He mixtures
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6760F Liquid He II- 3He mixtures
                                                                                                                                                                                                                                                                                                                                                                                                                                • A6765 Spin-polarized hydrogen and helium
                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6770 Films of quantum fluids and solids
                                                                                                                                                                                                                                                                                                                                                                                                                                    • A6780 Solid helium and related quantum crystals
                                                                                                                                                                                                                                                                                                                                                                                                                                      • A6780C Lattice dynamics and sound propagation (solid helium/quantum crystals)
                                                                                                                                                                                                                                                                                                                                                                                                                                      • A6780G Thermal properties (solid helium/quantum crystals)
                                                                                                                                                                                                                                                                                                                                                                                                                                      • A6780J Magnetic properties and NMR (solid helium/quantum crystals)
                                                                                                                                                                                                                                                                                                                                                                                                                                      • A6780M Defects, impurities, and diffusion (solid helium/quantum crystals)
                                                                                                                                                                                                                                                                                                                                                                                                                                    • A6790 Other topics in quantum fluids and solids (e.g. neutron-star matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                    • A6800 Surfaces and interfaces; thin films and whiskers
                                                                                                                                                                                                                                                                                                                                                                                                                                      • A6810 Fluid surfaces and interfaces with fluids
                                                                                                                                                                                                                                                                                                                                                                                                                                        • A6810C Fluid surface energy (surface tension, interface tension, angle of contact, etc.)
                                                                                                                                                                                                                                                                                                                                                                                                                                        • A6810E Fluid interface elasticity, viscosity, and viscoelasticity
                                                                                                                                                                                                                                                                                                                                                                                                                                        • A6810G Fluid interface activity, spreading
                                                                                                                                                                                                                                                                                                                                                                                                                                        • A6810J Fluid kinetics (evaporation, adsorption, condensation, catalysis, etc.)
                                                                                                                                                                                                                                                                                                                                                                                                                                      • A6815 Liquid thin films
                                                                                                                                                                                                                                                                                                                                                                                                                                        • A6817 Monolayers and Langmuir-Blodgett films
                                                                                                                                                                                                                                                                                                                                                                                                                                          • A6820 Solid surface structure
                                                                                                                                                                                                                                                                                                                                                                                                                                            • A6822 Surface diffusion, segregation and interfacial compound formation
                                                                                                                                                                                                                                                                                                                                                                                                                                              • A6825 Mechanical and acoustical properties of solid surfaces and interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                • A6830 Dynamics of solid surfaces and interface vibrations
                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6840 Surface energy of solids; thermodynamic properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A6845B Sorption equilibrium at solid-fluid interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A6845D Adsorption and desorption kinetics; evaporation and condensation
                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A6842 Surface phase transitions and critical phenomena
                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A6845 Solid-fluid interface processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A6845B Sorption equilibrium at solid-fluid interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A6845D Adsorption and desorption kinetics; evaporation and condensation
                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A6848 Solid-solid interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A6855 Thin film growth, structure, and epitaxy
                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A6860 Physical properties of thin films, nonelectronic
                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A6865 Low-dimensional structures: growth, structure and nonelectronic properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A6870 Whiskers and dendrites: growth, structure, and nonelectronic properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A6890 Other topics in the structure and nonelectronic properties of surfaces and thin films
                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7000 Condensed matter: electronic structure, electrical, magnetic, and optical properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7100 Electron states in condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7110 Theories and models of many electron systems in condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7110A Fermi liquid theory and other phenomenological models of many electron systems (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7110C Electron gas, Fermi gas (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7110F Lattice fermion models (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7110H Non-Fermi-liquid ground states, electron phase diagrams and phase transitions in model systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7110P Fermions in reduced dimensions (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115A Ab initio calculations (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115B Plane wave calculations (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115F Atomic- and molecular-orbital methods (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115H Pseudopotential methods (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115J Self consistent field (SCF) calculations (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115M Density functional theory, local density approximation (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115P General mathematical techniques in electronic structure calculations (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115Q Molecular dynamics calculations and other numerical simulations (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115R Relativistic calculations (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115T Other methods of electronic structure calculations (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7115 Methods of electronic structure calculations (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115A Ab initio calculations (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115B Plane wave calculations (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115F Atomic- and molecular-orbital methods (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115H Pseudopotential methods (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115J Self consistent field (SCF) calculations (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115M Density functional theory, local density approximation (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115P General mathematical techniques in electronic structure calculations (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115Q Molecular dynamics calculations and other numerical simulations (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115R Relativistic calculations (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7115T Other methods of electronic structure calculations (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7125 Electronic structure: density of states and band structure (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7125H Fermi surface: calculations and measurements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7125J Effective mass and g-factors (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7125L Electronic structure of liquid metals and semiconductors and their alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7125M Electronic structure of amorphous and glassy solids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7125P Electronic structure of crystalline metals and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7125R Electronic structure of crystalline elemental semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7125T Electronic structure of crystalline semiconductor compounds and insulators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7125V Electronic structure of organic compounds and polymers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7125X Electronic structure of fullerenes and fullerene-related materials; intercalation compounds
                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7127 Strongly correlated electron systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7128 Narrow-band systems, heavy-fermion metals; intermediate-valence solids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7130 Metal-insulator transitions and other electronic transitions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7135 Excitons and related phenomena
                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7136 Polaritons
                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A7138 Polarons and electron-phonon interactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7145 Collective effects (condensed matter electronic structure)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7145G Exchange, correlation, dielectric and magnetic functions, plasmons
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7145J Thomas-Fermi model (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7145L Charge-density-wave systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7145N Calculations of total electronic binding energy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7150 Localized single-particle electronic states
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7155D Impurity and defect levels in metals, semimetals, and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7155E Impurity and defect levels in elemental semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7155G Impurity and defect levels in II-VI and III-V semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7155H Impurity and defect levels in other nonmetals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7155J Localization in disordered structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7155 Impurity and defect levels
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7155D Impurity and defect levels in metals, semimetals, and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7155E Impurity and defect levels in elemental semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7155G Impurity and defect levels in II-VI and III-V semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7155H Impurity and defect levels in other nonmetals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7155J Localization in disordered structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7165 Positron states (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7170 Level splitting and interactions (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7170C Crystal and ligand fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7170E Spin-orbit coupling, Zeeman, Stark and strain splitting (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7170G Exchange interactions (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7170J Nuclear states and interactions (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7170M Other bulk localised states
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7190 Other topics in electron states of condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7200 Electronic transport in condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7210 Theory of electronic transport; scattering mechanisms
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7210B General formulation of electronic transport theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7210D Carrier scattering by phonons, magnons, and other nonlocalized excitations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7210F Carrier scattering by point defects, dislocations, surfaces, and other imperfections
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215C Electrical and thermal conduction in amorphous and liquid metals and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215E Electrical and thermal conduction in crystalline metals and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215G Galvanomagnetic and other magnetotransport effects (metals/alloys)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215H Thermomagnetic effects (metals/alloys)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215J Thermoelectric effects (metals/alloys)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215L Relaxation times and mean free paths (metals/alloys)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215N Collective modes; low-dimensional conductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215Q Scattering mechanisms and Kondo effect (metals/alloys)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215R Quantum localization (metals/alloys)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7215 Electronic conduction in metals and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215C Electrical and thermal conduction in amorphous and liquid metals and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215E Electrical and thermal conduction in crystalline metals and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215G Galvanomagnetic and other magnetotransport effects (metals/alloys)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215H Thermomagnetic effects (metals/alloys)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215J Thermoelectric effects (metals/alloys)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215L Relaxation times and mean free paths (metals/alloys)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215N Collective modes; low-dimensional conductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215Q Scattering mechanisms and Kondo effect (metals/alloys)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7215R Quantum localization (metals/alloys)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7220 Electrical conductivity phenomena in semiconductors and insulators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7220D General theory, carrier scattering mechanisms (semiconductors/insulators)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7220F Low-field transport and mobility; piezoresistance (semiconductors/insulators)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7220H High-field transport and nonlinear effects (semiconductors/insulators)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7220J Charge carriers: generation, recombination, lifetime, and trapping (semiconductors/insulators)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7220M Galvanomagnetic and other magnetotransport effects (semiconductors/insulators)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7220N Thermomagnetic effects (semiconductors/insulators)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7220P Thermoelectric effects (semiconductors/insulators)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7225 Spin polarized transport
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7230 High-frequency effects; plasma effects in electronic transport
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7240 Photoconduction and photovoltaic effects; photodielectric effects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7250 Acoustoelectric effects (electronic transport)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7255 Magnetoacoustic effects (electronic transport)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A7260 Mixed conductivity and conductivity transitions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7270 Noise processes and phenomena in electronic transport
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7280 Electrical conductivity of specific semiconductors and insulators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7280C Electrical conductivity of elemental semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7280E Electrical conductivity of II-VI and III-V semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7280G Electrical conductivity of transition-metal compounds
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7280J Electrical conductivity of other crystalline inorganic semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7280L Electrical conductivity of organic compounds and polymers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7280N Electrical conductivity of amorphous and glassy semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7280P Electrical conductivity of liquid semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7280R Electrical conductivity of fullerenes and related materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7280S Electrical conductivity of insulators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7280T Electrical conductivity of composite materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7290 Other topics in electronic transport in condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7300 Electronic structure and electrical properties of surfaces, interfaces, thin films, low-dimensional and nanoscale structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7315 Electronic structure: density of states and band structure (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7315B Electronic structure of metals and alloys (thin films, low dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7315D Electronic structure of elemental semiconductors (thin films, low dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7315F Electronic structure of II-VI and III-V semiconductors (thin films, low dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7315H Electronic structure of other inorganic semiconductors and insulators (thin films, low dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7315J Electronic structure of amorphous and glassy materials (thin films, low dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7315L Electronic structure of organic compounds and polymers (thin films, low dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7315N Electronic structure of graphene and graphene-related materials (thin films, low dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7315P Electronic structure of composite materials (thin films, low dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7320 Electronic states (surfaces and interfaces)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7320A Surface states, surface band structure, surface electron density of states
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7320F Weak localization (surface states)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7320H Surface impurity and defect levels; energy levels of adsorbed species
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7320J Delocalization processes (surface states)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7320M Collective excitations (surface states)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7325 Surface conductivity and carrier phenomena
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7330 Surface double layers, Schottky barriers, and work functions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7335A Ballistic transport
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7335C Coulomb blockade; quantum tunnelling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7335 Mesoscopic systems and quantum interference
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7335A Ballistic transport
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7335C Coulomb blockade; quantum tunnelling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7340 Electrical properties of interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7340B Static electrification
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7340C Contact resistance, contact potential, and work functions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7340E Rectification at interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7340G Tunnelling: general (electronic transport)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7340H Quantum Hall effect
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7340J Electrical properties of metal-to-metal contacts
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7340L Electrical properties of semiconductor-to-semiconductor contacts, p-n junctions, and heterojunctions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7340M Electrical properties of semiconductor-electrolyte contacts
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7340N Electrical properties of metal-nonmetal contacts
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7340Q Electrical properties of metal-insulator-semiconductor structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7340R Electrical properties of metal-insulator-metal structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7340S Electrical properties of metal-semiconductor-metal structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7340T Electrical properties of semiconductor-insulator-semiconductor structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7340V Electrical properties of semiconductor-metal-semiconductor structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7360 Electrical properties of thin films, low-dimensional and nanoscale structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7360D Electrical properties of metals and metallic alloys (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7360H Electrical properties of insulators (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7360J Electrical properties of elemental semiconductors (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7360L Electrical properties of II-VI and III-V semiconductors (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7360N Electrical properties of amorphous and glassy semiconductors (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7360P Electrical properties of other inorganic semiconductors (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7360R Electrical properties of organic compounds and polymers (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7360T Electrical properties of graphene and graphene-related materials (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7390 Other topics in electrical properties of surfaces, interfaces, and thin films
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7400 Superconductivity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7410 Superconducting critical temperature, occurrence
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7420 Theory of superconductivity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7420D Phenomenological and two-fluid superconductivity theories
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7420F BCS theory of superconductivity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7420M Other theories of superconductivity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7430 General properties of superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7430C Magnetic properties of superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7430E Thermal and thermodynamic properties of superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7430F Transport properties of superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7430G Superconductor response to electromagnetic fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7430H Phase diagrams of superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7430J Electronic structure of superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7430K Phonons in superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7430L Mechanical and acoustic properties of superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7430M Optical properties of superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7440 Fluctuations and critical effects in superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7450 Superconductor tunnelling phenomena, proximity effects, and Josephson effect
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A7455 Type-I superconductivity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7460 Type-II superconductivity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7460E Mixed state, H c2, surface sheath
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7460G Flux pinning, flux motion, fluxon-defect interactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7460J Critical currents in type-II superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7460M Material effects on T c, K, critical currents in type-II superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7465 Insulator-superconductor transition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7470 Superconducting materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7470B Elemental superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7470C Superconducting A15 compounds and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7470E Superconducting interstitial compounds and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7470F Chevrel phase (ternary molybdenum chalcogenide) superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7470H Magnetic superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7470J Superconducting layer structures and intercalation compounds
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7470K Organic superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7470M Amorphous, highly disordered, and granular superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7470Q Laves phase (C15) superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7470S Superconducting metastable nonstoichiometric phases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7470T Heavy-fermion superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7470V Perovskite phase and other high-temperature superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7470W Fullerene superconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7470Y Other superconducting materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7475 Superconducting films and low-dimensional structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7490 Other topics in superconductivity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7500 Magnetic properties and materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7510 General theory and models of magnetic ordering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7510D Crystal-field theory and spin Hamiltonians (magnetism)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7510H Ising and other classical spin models (magnetism)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7510J Heisenberg and other quantized localized spin models (magnetism)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7510L Band and itinerant models (magnetism)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7510N Spin-glass models (magnetism)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7520 Diamagnetism and paramagnetism
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7520C Diamagnetism and paramagnetism in nonmetals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7520E Diamagnetism and paramagnetism in metals and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7520H Local moment in dilute alloys; Kondo effect, valence fluctuations, heavy fermions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7525 Spin arrangements in magnetically ordered materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7530 Magnetically ordered materials, other intrinsic properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7530C Magnetic moments and susceptibility in magnetically ordered materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7530D Spin waves in magnetically ordered materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7530E Exchange and superexchange interactions in magnetically ordered materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7530F Spin-density waves in magnetically ordered materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7530G Magnetic anisotropy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7530H Magnetic impurity interactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7530K Magnetic phase boundaries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7530M Valence fluctuations, Kondo lattice and heavy fermions in magnetically ordered materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7530S Magnetocaloric effect in magnetically ordered materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7530T Surface magnetism
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7530V Enhanced magnetoresistance in bulk magnetic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7540 Critical-point effects, specific heats, short-range order in magnetic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7540C Static properties of magnetic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7540G Dynamic properties of magnetic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7540M Numerical simulation studies of magnetic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7550 Studies of specific magnetic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7550B Ferromagnetism of Fe and its alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7550C Ferromagnetism of nonferrous metals and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7550D Ferromagnetism of nonmetals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7550E Antiferromagnetics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7550G Ferrimagnetics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7550K Amorphous and nanostructured magnetic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7550L Spin glasses (magnetic materials)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7550M Magnetic liquids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7550P Magnetic semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7550R Magnetism in interface structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7550S Magnetic recording materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7550V High coercivity magnetic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7550X Molecular magnets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7560 Magnetic domain effects, magnetization curves, and hysteresis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7560C Magnetic domain walls and domain structure
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7560E Magnetization curves, hysteresis, Barkhausen and related effects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7560J Fine-particle magnetic systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7560L Magnetic aftereffects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7560N Magnetic annealing and temperature-hysteresis effects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7570 Magnetic films, multilayers and low-dimensional structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7570A Magnetic properties of single layer thin films
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7570B Magnetic properties of nanostructures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7570C Interfacial magnetic properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7570K Domain structure in magnetic films (magnetic bubbles)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7570P Enhanced magnetoresistance in magnetic films and multilayers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7580 Magnetomechanical and magnetoelectric effects, magnetostriction
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7590 Other topics in magnetic properties and materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7600 Magnetic resonances and relaxation in condensed matter; Mössbauer effect
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7620 General theory of magnetic resonances and relaxation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A7630 Electron paramagnetic resonance and relaxation (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7630D EPR of ions and impurities: general
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7630F EPR of iron group (3d) ions and impurities (Ti-Cu)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7630H EPR of platinum and palladium group (4d and 5d) ions and impurities (Zr-Ag and Hf-Au)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7630K EPR of rare-earth ions and impurities
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7630L EPR of other ions and impurities
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7630M EPR of colour centres and other defects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7630P EPR of conduction electrons
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7630R EPR of free radicals (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A7640 Diamagnetic and cyclotron resonances (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7650 Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin wave resonance
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7660 Nuclear magnetic resonance and relaxation (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7660C Chemical and Knight shifts (condensed matter NMR)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7660E Relaxation effects (condensed matter NMR)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7660G Quadrupole resonance (condensed matter NQR)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7660J Effects of internal magnetic fields (condensed matter NMR)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7660L Spin echoes (condensed matter NMR)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7670 Magnetic double resonances and cross effects (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7670D Electron-nuclear double resonance (ENDOR) (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7670E Dynamical nuclear polarization (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7670F Double nuclear magnetic resonance (DNMR) (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7670H Optical double magnetic resonance (ODMR) (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7670K Electron double resonance (ELDOR) (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7675 Muon spin rotation and relaxation in condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7680 Mössbauer effect; other gamma-ray spectroscopy in condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7690 Other topics in magnetic resonances and relaxation in condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7700 Dielectric properties and materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7720 Dielectric permittivity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7730 Dielectric polarization and depolarization effects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7740 Dielectric loss and relaxation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A7750 Dielectric breakdown and space-charge effects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7755 Dielectric thin films
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7760 Piezoelectricity and electrostriction
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7770 Pyroelectric and electrocaloric effects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7780 Ferroelectricity and antiferroelectricity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7780B Ferroelectric transitions and Curie point
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7780D Ferroelectric domain structure and effects; hysteresis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7780F Ferroelectric switching phenomena
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7785 Electrical resonances
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7790 Other topics in dielectric properties and materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7800 Optical properties and condensed matter spectroscopy and other interactions of matter with particles and radiation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7820 Optical properties of condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7820B Optical properties of pure homogeneous materials: general theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7820D Optical constants and parameters (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7820E Optical rotatory power (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7820F Birefringence (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7820H Piezo-, elasto- and acousto-optical effects; photoacoustic effect (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7820J Electro-optical effects (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7820L Magneto-optical effects (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7820N Thermo-optical and photothermal effects (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7820P Photonic band gap (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7820W Other optical properties of condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7830 Infrared and Raman spectra and scattering (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7830C Infrared and Raman spectra in liquids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7830E Infrared and Raman spectra in metals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7830G Infrared and Raman spectra in inorganic crystals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7830J Infrared and Raman spectra in organic crystals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7830L Infrared and Raman spectra in disordered solids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7835 Brillouin and Rayleigh scattering; other light scattering (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7840 Visible and ultraviolet spectra (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A7840D Visible and ultraviolet spectra of liquids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A7840E Visible and ultraviolet spectra of elemental semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A7840G Visible and ultraviolet spectra of II-VI and III-V semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A7840H Visible and ultraviolet spectra of other nonmetals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A7840K Visible and ultraviolet spectra of metals, semimetals, and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A7845 Stimulated emission (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A7847 Ultrafast optical measurements in condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7850 Impurity and defect absorption in solids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7850E Impurity and defect absorption in insulators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7850G Impurity and defect absorption in semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7850J Impurity and defect absorption in metals, semimetals, and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7855B Photoluminescence in liquids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7855C Photoluminescence in elemental semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7855E Photoluminescence in II-VI and III-V semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7855F Photoluminescence in alkali halides
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7855H Photoluminescence in other inorganic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7855K Photoluminescence in organic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7855 Photoluminescence (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7855B Photoluminescence in liquids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7855C Photoluminescence in elemental semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7855E Photoluminescence in II-VI and III-V semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7855F Photoluminescence in alkali halides
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7855H Photoluminescence in other inorganic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7855K Photoluminescence in organic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7860 Other luminescence spectra and radiative recombination (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7860F Electroluminescence (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7860H Cathodoluminescence, ionoluminescence (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7860K Thermoluminescence (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7860M Sonoluminescence, triboluminescence (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7860P Chemiluminescence (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7865E Optical properties of metals and metallic alloys (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7865H Optical properties of elemental semiconductors (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7865K Optical properties of II-VI and III-V semiconductors (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7865M Optical properties of amorphous and glassy semiconductors and insulators (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7865P Optical properties of other inorganic semiconductors and insulators (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7865T Optical properties of organic compounds and polymers (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7865V Optical properties of graphene and graphene related materials (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7865 Optical properties of thin films, low-dimensional and nanoscale structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7865E Optical properties of metals and metallic alloys (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7865H Optical properties of elemental semiconductors (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7865K Optical properties of II-VI and III-V semiconductors (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7865M Optical properties of amorphous and glassy semiconductors and insulators (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7865P Optical properties of other inorganic semiconductors and insulators (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7865T Optical properties of organic compounds and polymers (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7865V Optical properties of graphene and graphene related materials (thin films, low-dimensional and nanoscale structures)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7870 Other interactions of condensed matter with particles and radiation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7870B Positron annihilation (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7870C X-ray scattering (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7870D X-ray absorption and absorption edges (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7870E X-ray emission threshold and fluorescence (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7870F Channelling radiation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7870G Microwave, radiofrequency and terahertz wave interactions with condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7890 Other topics in optical properties of condensed matter and other interactions of matter with particles and radiation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A7900 Electron and ion emission by liquids and solids; impact phenomena
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7920 Surface impact phenomena
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7920D Laser-surface impact phenomena
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7920F Electron-surface impact: Auger emission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7920H Electron-surface impact: secondary emission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7920K Other electron-surface impact phenomena
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7920N Atom-, molecule-, and ion-surface impact and interactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A7940 Thermionic emission (from surfaces)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7960 Photoemission and photoelectron spectra (condensed matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7960C Photoelectron spectra of clean metals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7960E Photoelectron spectra of semiconductors and insulators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7960G Photoelectron spectra of composite surfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A7970 Field emission and field ionization
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A7975 Exoelectron emission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A7980 Resonance tunnelling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A7990 Other topics in emission and impact phenomena in condensed matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8000 Cross-disciplinary physics and related areas of science and technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8100 Materials science
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8110 Methods of crystal growth and purification
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8110B Crystal growth from vapour
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8110D Crystal growth from solution
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8110F Crystal growth from melt
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8110H Zone melting and zone refining
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8110J Growth from solid phases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115C Deposition by sputtering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115G Vacuum deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115H Chemical vapour deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115I Pulsed laser deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115J Ion plating and other vapour deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115L Deposition from liquid phases (melts and solutions)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115N Thin film growth from solid phases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115R Spray coating techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8116D Self-assembly in nanofabrication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8116F Nanocrystal growth
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8116H Nanostructured film deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8116N Nanolithography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8116R Nanopatterning
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8116T Nanopositioning and atom manipulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8116W Other methods of nanofabrication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8115 Methods of thin film deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115C Deposition by sputtering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115G Vacuum deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115H Chemical vapour deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115I Pulsed laser deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115J Ion plating and other vapour deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115L Deposition from liquid phases (melts and solutions)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115N Thin film growth from solid phases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8115R Spray coating techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8116 Methods of nanofabrication and processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8116D Self-assembly in nanofabrication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8116F Nanocrystal growth
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8116H Nanostructured film deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8116N Nanolithography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8116R Nanopatterning
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8116T Nanopositioning and atom manipulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8116W Other methods of nanofabrication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8120 Other methods of preparation of materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8120E Powder techniques, compaction and sintering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8120G Preparation of metals and alloys (compacts, pseudoalloys)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8120J Preparation of dispersion-,fibre-, and platelet-reinforced metal-based composites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8120L Preparation of ceramics and refractories
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8120N Preparation of cermets, ceramic and refractory composites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8120P Preparation of glasses
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8120Q Preparation of glass-based composites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8120S Preparation of polymers and plastics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8120T Preparation of reinforced polymers and polymer-based composites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8120V Preparation of graphene and graphene-related materials, intercalation compounds, and diamond
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8130 Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8130B Phase diagrams of metals and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8130D Phase diagrams of other materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8130F Solidification
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8130H Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8130K Martensitic transformations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8130M Precipitation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8140 Mechanical properties and materials treatment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8140C Solid solution hardening, precipitation hardening, dispersion hardening
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8140E Cold working, work hardening; post-deformation annealing, recovery and recrystallisation; textures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8140G Other heat and thermomechanical treatments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8140J Elasticity and anelasticity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8140L Deformation, plasticity and creep
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8140N Fatigue, embrittlement, and fracture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8140P Friction, lubrication, and wear
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8140R Electrical and magnetic properties (related to treatment conditions)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8140T Optical properties (related to treatment conditions)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8160 Corrosion, oxidation, etching, and other surface treatments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8160B Surface treatment and degradation of metals and alloys
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8160C Surface treatment and degradation in semiconductor technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8160D Surface treatment and degradation of ceramics and refractories
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8160F Surface treatment and degradation of glasses
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8160H Surface treatment and degradation of composites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8160J Surface treatment and degradation of polymers and plastics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8170 Materials testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8170B Nondestructive testing: acoustic methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8170E Nondestructive testing: eddy current testing and related techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8170G Nondestructive testing: optical methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8170J Nondestructive testing: X-ray methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8170L Nondestructive testing: other techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8180 Reduced gravity experiments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8185 Intelligent materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8190 Other topics in materials science
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8200 Physical chemistry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8220 Chemical kinetics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8220D Statistical theories of chemical kinetics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8220F Stochastic and trajectory models of chemical kinetics, other theories and models
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8220H Mechanisms and product distributions in chemical kinetics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8220K Potential energy surfaces for chemical reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8220M Nonequilibrium chemical kinetics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8220P Measurements of chemical rate constants, reaction cross sections, and activation energies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8220R Energy distribution and transfer, relaxation in chemical reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8220T Kinetic and isotope effects in chemical reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8220W Computational modelling of chemical kinetics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8230 Specific chemical reactions; reaction mechanisms
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8230C Atom and radical reactions (with themselves or with molecules)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8230E Molecule-molecule reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8230F Ion-molecule, ion-ion, and charge-transfer reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8230H Chemical exchanges (substitution, atom transfer, abstraction, disproportionation, and group exchange)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8230L Decomposition reactions (pyrolysis, dissociation, and group ejection)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8230N Association, addition, and insertion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8230Q Isomerization and rearrangement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8230S Chain reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8230V Homogeneous catalysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8235 Polymer reactions and polymerization
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8240 Chemical kinetics and reactions: special regimes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8240D Atomic and molecular beam reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8240F Chemical reactions in shock waves
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8240J Fast and ultrafast chemical reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8240M Impulse techniques for chemical reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8240P Flames, combustion, and explosions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8240Q Plasma reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8240T Chemiluminescence and chemical laser kinetics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8240W Atmospheric chemistry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8245 Electrochemistry and electrophoresis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8250 Photochemistry and radiation chemistry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8250C Quantum yields in radiation chemistry and photochemistry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8250E Photodissociation, photoionization as studied by luminescence and radiationless transitions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8250F Photolysis and photodissociation by IR, UV and visible radiation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8250G Radiolysis and dissociation by X-rays and gamma-rays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8255D Hot atom reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8255G Positronium chemistry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8255K Tracer reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8255 Radiochemistry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8255D Hot atom reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8255G Positronium chemistry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8255K Tracer reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8260 Chemical thermodynamics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8260C Enthalpies of combustion, reaction and formation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8260F Heat capacity and heats of phase transitions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8260H Chemical equilibria and equilibrium constants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8260L Thermodynamics of solutions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8260N Nucleation (chemical thermodynamics)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8265D Chemical thermodynamics of surfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8265F Film and membrane processes; ion exchange; dialysis; osmosis, electro-osmosis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8265J Heterogeneous catalysis at surfaces and other surface reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8265M Sorption and accommodation coefficients (surface chemistry)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8265N Other gas-surface interactions (surface chemistry)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8265 Surface chemistry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8265D Chemical thermodynamics of surfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8265F Film and membrane processes; ion exchange; dialysis; osmosis, electro-osmosis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8265J Heterogeneous catalysis at surfaces and other surface reactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8265M Sorption and accommodation coefficients (surface chemistry)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8265N Other gas-surface interactions (surface chemistry)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8270 Disperse systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8270D Colloids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8270G Gels and sols
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8270K Emulsions and suspensions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8270R Aerosols and foams
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8280 Chemical analysis and related physical methods of analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8280B Chromatography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8280D Electromagnetic radiation spectrometry (chemical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8280F Electrochemical analytical methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8280H Nuclear chemical analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8280K Energy conversion spectroscopic methods of chemical analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8280M Mass spectrometry (chemical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8280P Electron spectroscopy for chemical analysis (photoelectron, Auger spectroscopy, etc.)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8280S Analytical methods using colligative properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8280T Chemical sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8285 Physical chemistry aspects of chemical technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8290 Other topics in physical chemistry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8600 Energy research and environmental science
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8605 Energy and environmental policy, economics and legislation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8610 Energy resources and fuels
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8610A Biofuel and biomass resources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8610B Fossil fuels
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8610C Hydrogen fuel
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8610D Wind energy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8610F Tidal and flow energy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8610H Geothermal energy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8610K Solar energy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8610N Nuclear energy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8610W Waste resources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8610Z Other topics in energy resources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8620 Energy utilisation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620A General transportation (energy utilisation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620B Automotive transportation (energy utilisation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620C Aerospace transportation (energy utilisation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620D Marine transportation (energy utilisation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620E Rail transportation (energy utilisation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620F Other transportation (energy utilisation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620H Heating (energy utilisation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620K Refrigeration and cooling (energy utilisation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620M Lighting (energy utilisation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620Q Buildings (energy utilisation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620S Industry and manufacturing (energy utilisation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620U Agriculture (energy utilisation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620W Electrical/electronic equipment (energy utilisation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620X Telecommunication systems (energy utilisation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8620Z Other energy utilisation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8630 Energy conversion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630D Electrochemical conversion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630E Primary cells
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630F Secondary cells
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630G Fuel cells
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630J Photoelectric conversion; solar cells and arrays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630K Photoelectrochemical conversion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630L Electrogasdynamic and magnetohydrodynamic conversion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630M Thermoelectric conversion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630N Thermionic conversion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630P Photosynthesis and bioenergy conversion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630Q Chemical energy conversion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630R Thermal energy conversion (heat engines and heat pumps)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630S Photothermal conversion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630T Energy harvesting
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8630Z Other topics in energy conversion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8640 Energy storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8640C Storage in mechanical energy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8640F Storage in thermal energy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8640H Storage in chemical energy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8640K Hydrogen storage and technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8640N Storage in electrical energy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8640Z Other topics in energy storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8660 Requirement for energy: ecological aspects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8670 Environmental science
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8670C Soil and rock (environmental science)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8670E Water (environmental science)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8670G Atmosphere (environmental science)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8670H Indoor environment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8670J Noise (environmental science)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8670L Measurement techniques and instrumentation in environmental science
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8670Z Other topics in environmental science
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8675C Pollution removal at source
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8675F Contamination remediation (environmental science technology)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8675M Carbon storage/sequestration (environmental science technology)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8675T Waste disposal (environmental science technology)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8675Z Other topics in environmental science technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8675 Environmental science technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8675C Pollution removal at source
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8675F Contamination remediation (environmental science technology)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8675M Carbon storage/sequestration (environmental science technology)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8675T Waste disposal (environmental science technology)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8675Z Other topics in environmental science technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8690 Other topics in energy research and environmental science
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A8700 Biophysics, medical physics, and biomedical engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8710 General, theoretical, and mathematical biophysics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8715B Biomolecular structure, configuration, conformation, and active sites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8715D Physical chemistry of biomolecular solutions and condensed states
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8715H Biomolecular dynamics, molecular probes, molecular pattern recognition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8715K Biomolecular interactions, charge transfer complexes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8715M Interactions with radiations at the biomolecular level
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8715P Model reactions in molecular biophysics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8715 Molecular biophysics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8715B Biomolecular structure, configuration, conformation, and active sites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8715D Physical chemistry of biomolecular solutions and condensed states
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8715H Biomolecular dynamics, molecular probes, molecular pattern recognition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8715K Biomolecular interactions, charge transfer complexes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8715M Interactions with radiations at the biomolecular level
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8715P Model reactions in molecular biophysics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A8716 Biothermics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8720 Membrane biophysics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8720C General theory of biophysical interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8720E Natural and artificial biomembranes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8725B Bioenergetics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8725D Biological transport; cellular and subcellular transmembrane physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8725F Physics of subcellular structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8725 Cellular biophysics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8725B Bioenergetics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8725D Biological transport; cellular and subcellular transmembrane physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8725F Physics of subcellular structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A8728 Bioelectricity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8730 Biophysics of neurophysiological processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8730C Electrical activity in neurophysiological processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8730E External and internal data communications, nerve conduction and synaptic transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8730G Brain models
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8732C Anatomy and optics of the eye
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8732E Physiology of the eye; nerve structure and function
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8732J Eye modulation transfer
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8732L Vision: light detection, adaptation and discrimination
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8732N Colour vision: detection, adaptation and discrimination
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8732Q Scales for light and colour detection in vision
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8732S Psychophysics of vision, visual perception, binocular vision
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8734B Auditory effects of noise
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8734D Otoacoustic emissions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8734F Auditory prostheses and hearing aids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8732 Physiological optics, vision
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8732C Anatomy and optics of the eye
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8732E Physiology of the eye; nerve structure and function
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8732J Eye modulation transfer
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8732L Vision: light detection, adaptation and discrimination
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8732N Colour vision: detection, adaptation and discrimination
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8732Q Scales for light and colour detection in vision
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8732S Psychophysics of vision, visual perception, binocular vision
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8734 Audition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8734B Auditory effects of noise
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8734D Otoacoustic emissions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8734F Auditory prostheses and hearing aids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A8736 Speech and biocommunications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A8738 Mechano- and chemio-ceptions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8740 Biomagnetism
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8745B Mechanical properties of tissues and organs
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8745D Physics of body movements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8745F Rheology of body fluids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8745H Haemodynamics, pneumodynamics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8745 Biomechanics, biorheology, biological fluid dynamics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8745B Mechanical properties of tissues and organs
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8745D Physics of body movements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8745F Rheology of body fluids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8745H Haemodynamics, pneumodynamics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8750 Biological effects of radiations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8750B Interactions of biosystems with radiations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8750C Bioacoustics (sonic and ultrasonic effects on living matter)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8750E Bio-optics (effects of microwaves, light, laser and other electromagnetic waves)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8750G Biological effects of ionizing radiations (UV, X-ray, gamma-ray; particle radiation effects)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8760 Medical and biomedical uses of fields, radiations, and radioactivity; health physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8760B Sonic and ultrasonic radiation (medical uses)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8760D Electric and magnetic fields (medical uses)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8760F Optical and laser radiation (medical uses)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8760G Microwaves and other electromagnetic waves (medical uses)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8760I Medical magnetic resonance imaging and spectroscopy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8760J X-rays and particle beams (medical uses)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8760K Nuclear medicine, emission tomography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8760L Preparation of radioactive materials for medical and biomedical uses
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8760M Radiation dosimetry in medical physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8760P Radiation protection in medical physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8760R Radioactive pollution and natural radioactivity: health aspects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A8765 Aerospace biophysics and medical physics (effects of accelerations, weightlessness and environment)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8770 Biomedical engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8770E Patient diagnostic methods and instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8770F Electrodiagnostics and other electrical measurement techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8770G Patient care and treatment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8770H Radiation therapy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8770J Prosthetics and other practical applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8770M Biomedical materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8780 Biophysical instrumentation and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8780B Biosensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8780S Genomic techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8780U Proteomic techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A8783 Nanotechnology applications in biomedicine
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A8790 Other topics in biophysics, medical physics, and biomedical engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9000 Geophysics, astronomy and astrophysics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9100 Solid Earth physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9110 Geodesy and gravity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9110B Mathematical geodesy: general theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9110D Cartography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9110J Topography: geometrical observations of the Earth
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9110L Photogrammetry of land surfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9110N Rotational variations of the Earth: polar wobble
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9110Q Gravity fields of the Earth
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9110T Earth tides and crustal tilt
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9125 Geomagnetism and geoelectricity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9125C Origins and models of the geomagnetic field; dynamo theories
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9125E Magnetotellurics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9125G Geomagnetic spatial variations (all harmonics and anomalies)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9125J Geomagnetic spatial variations attributed to sea floor spreading
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9125L Geomagnetic temporal variations and reversals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9125N Palaeomagnetism
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9125Q Geoelectricity; electromagnetic induction and conductivity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9130 Seismology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9130B Seismic sources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9130D Seismicity (spatial and temporal distribution)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9130F Seismic waves
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9130K Oscillations of the Earth interior (periods less than 12 hours)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9130M Seismic strong motions and damage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9130N Tsunami
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9130P Earthquake prediction and precursory phenomena
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9130R Controlled source seismology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9135C Earth models
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9135D Terrestrial heat
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9135E Earth core and lower mantle
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9135G Earth crust and upper mantle
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9135L Geochemistry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9135N Geochronology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9135 Earth interior
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9135C Earth models
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9135D Terrestrial heat
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9135E Earth core and lower mantle
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9135G Earth crust and upper mantle
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9135L Geochemistry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9135N Geochronology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9140 Volcanology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9145B Sub-plate scale tectonics (faults, folds, rifts, etc.)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9145D Plate tectonics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9145F Convection currents in the mantle and crust
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9145P Slow vertical crustal movements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9145S Gravity observations related to tectonics and isostasy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9145 Tectonics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9145B Sub-plate scale tectonics (faults, folds, rifts, etc.)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9145D Plate tectonics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9145F Convection currents in the mantle and crust
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9145P Slow vertical crustal movements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9145S Gravity observations related to tectonics and isostasy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9150 Marine geology and geophysics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9150C Beach, coastal and shelf processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9150E Seafloor processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9150G Bathymetry and seafloor topography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9150J Marine sedimentation and sediments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9160 Physical properties of rocks, minerals and soil
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9160B Mechanical and acoustic properties of rocks, minerals and soil
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9160F Equations of state of minerals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9160H Phase changes in minerals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9160K Thermal properties of rocks, minerals and soil
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9160P Magnetic and electric properties of rocks, minerals and soil
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9160W Other properties of rocks, minerals and soil
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9165 Geophysical aspects of geology and mineralogy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9185 Geophysical aspects of vegetation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9190 Other topics in solid Earth physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9200 Hydrospheric and lower atmospheric physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9210 Physics of the oceans
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9210B Physical properties of seawater
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9210D Dynamics of the deep ocean
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9210F Dynamics of the upper ocean
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9210H Surface waves, tides, and sea level
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9210J Seiches
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9210K Sea-air interactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9210L Turbulence, diffusion, mixing, and convection in the oceans
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9210M Thermohaline structure and circulation of the oceans
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9210P Optical and other electromagnetic aspects of oceanography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9210R Sea ice
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9210S Coastal and estuarine oceanography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9210V Underwater sound
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9210X Palaeo-oceanography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9220 Interdisciplinary aspects of oceanography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9220C Chemistry of the oceans
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9220G Energy extraction from the oceans
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9220J Biological aspects of oceanography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9220N Pollution of the oceans
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9240 Hydrology and glaciology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9240C General hydrological theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9240E Precipitation (hydrological)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9240F Rivers, runoff, and streamflow
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9240G Erosion and sedimentation (hydrological)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9240J Evaporation and transpiration (hydrological)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9240K Groundwater
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9240L Soil moisture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9240N Lakes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9240Q Water quality and water resources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9240R Land surface snow
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9240S Land surface ice
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9240V Glaciers and ice sheets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9260 Lower atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260B General atmospheric circulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260C Synoptic and mesoscale atmospheric phenomena
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260D Gravity waves, tides, and compressional waves in the lower atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260E Convection, turbulence, and diffusion in the lower atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260F Atmospheric boundary layer structure and processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260G Winds and their effects in the lower atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260H Chemical composition and chemical interactions in the lower atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260J Water in the atmosphere (humidity, clouds, evaporation, precipitation)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260K Temperature of the lower atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260L Ionic interactions and processes in the lower atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260M Particles and aerosols in the lower atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260N Cloud physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260P Atmospheric electricity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260Q Atmospheric storms
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260S Climatology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260T Air quality and air pollution
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260V Electromagnetic wave propagation and interactions in the lower atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260W Sunlight and atmospheric radiation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260X Weather analysis and prediction
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260Y Meteorological applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9260Z Palaeo-atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9265D Atmospheric optical propagation, radiative transfer
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9265H Atmospheric spectral energy distribution, spectral absorption
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9265M Atmospheric optical scattering, polarization
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9265R Atmospheric laser beam propagation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9265S Atmospheric optical imaging
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9265T Atmospheric optical modulation transfer
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9265V Clouds, fog, haze, aerosols, effects of pollution on atmospheric optics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9265 Atmospheric optics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9265D Atmospheric optical propagation, radiative transfer
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9265H Atmospheric spectral energy distribution, spectral absorption
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9265M Atmospheric optical scattering, polarization
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9265R Atmospheric laser beam propagation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9265S Atmospheric optical imaging
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9265T Atmospheric optical modulation transfer
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9265V Clouds, fog, haze, aerosols, effects of pollution on atmospheric optics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9290 Other topics in hydrospheric and atmospheric physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9300 Geophysical observations, instrumentation, and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9330 Information related to geographical regions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9330B Africa
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9330C Antarctica
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9330D Asia
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9330F Australasia
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9330G Europe
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9330H North America
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9330J South America
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9330K Islands
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9330L Arctic Ocean
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9330M Atlantic Ocean
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9330N Indian Ocean
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9330P Pacific Ocean
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9330Q Southern Ocean
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9330R Regional seas
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9355 Research organizations and programmes in geophysics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9365 Data and information; acquisition, processing, storage and dissemination in geophysics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9385 Instrumentation and techniques for geophysical, hydrospheric and lower atmosphere research
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9400 Aeronomy, space physics, and cosmic rays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9410 Neutral upper atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9410B General properties of the upper atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9410D Structure, pressure, density, and temperature of the upper atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9410F Chemical composition and chemical interactions in the upper atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9410G Electromagnetic wave propagation and interactions in the upper atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9410J Tides, waves, winds, and circulation in the upper atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9410L Convection, diffusion, mixing, and turbulence in the upper atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9410N Dust and aerosols in the upper atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9410Q Airglow, nightglow, and geocorona
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9410S Aurora
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9420 Ionosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9420B Ionospheric electromagnetic wave propagation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9420D Ionospheric structure
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9420E D-region
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9420G E-region
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9420J F-region
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9420L Topside region
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9420Q Ionospheric particle precipitation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9420R Ionospheric plasma waves, instabilities, and interactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9420S Ionospheric electric fields and currents
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9420T Ionospheric plasma motion, convection, and circulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9420V Ionospheric disturbances and modification experiments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9420W Interaction between ionosphere and magnetosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9420Z Radiowave and rocket soundings of the ionosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9430 Magnetosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430B Plasmasphere and plasmapause
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430C Magnetospheric configuration and coordinate systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430D Magnetopause
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430E Geomagnetic tail
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430F Magnetospheric plasma motion, convection, and circulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430G Magnetospheric plasma instabilities and interactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430H Trapped particles in the magnetosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430K Magnetospheric electric fields and currents
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430L Magnetospheric magnetic storms, substorms
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430M Magnetic pulsations in the magnetosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430N Magnetospheric plasma waves
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430P Magnetospheric electromagnetic wave propagation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430Q ELF and ULF waves in the magnetosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430R VLF and LF waves in the magnetosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430S Magnetosheath
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430V Magnetospheric interaction with solar wind
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9430W Magnetospheric interaction with cosmic rays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9440 Cosmic rays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9440C Cosmic ray origin and propagation outside the solar system
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9440E Cosmic ray interplanetary propagation and effects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9440H Energetic solar particles and photons
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9440K Cosmic ray solar modulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9440L Cosmic ray composition and energy spectra
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9440N Cosmic ray showers and bursts
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9440R High-energy cosmic ray interactions, energy >10 GeV
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9440T Cosmic ray muons and neutrinos
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9440V Cosmic ray effects in meteorites and terrestrial, lunar, and planetary matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9460 Interplanetary space
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9460D Interplanetary magnetic fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9460F Interplanetary electric fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9460G Solar wind plasma
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9460K Interplanetary neutral gases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9460Q Solar wind interaction with Moon, planets, satellites, and comets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9460R Shock waves in interplanetary space
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9460S Electromagnetic radiation in interplanetary space
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9460V Outer heliosphere and interstellar interaction
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9480 Instrumentation and techniques for aeronomy, space physics, and cosmic rays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9490 Other topics in aeronomy, space physics, and cosmic rays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9500 Fundamental astronomy and astrophysics, instrumentation and techniques and astronomical observations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9510 Fundamental astronomy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9510C Celestial mechanics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9510E Orbit determination and improvement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9510G Eclipses, transits and occultations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9510J Astrometry and spherical astronomy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9530 Fundamental aspects of astrophysics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9530C Elementary particle and nuclear processes in astrophysics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9530E Astrophysical atomic, molecular, and solid state processes and interactions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9530G Astrophysical radiation mechanisms
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9530J Astrophysical radiative transfer
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9530L Astrophysical fluid dynamics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9530Q Astrophysical hydromagnetics and plasmas
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9530S Relativity and gravitation in astrophysics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9545 Astronomical observatories
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9555 Astronomical and space-research instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9555B Astrometric instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9555C Ground-based telescopes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9555E Solar instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9555J Radiotelescopes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9555K X-ray and gamma-ray telescopes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9555L Aerospace instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9555P Lunar, planetary, and deep-space probes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9555S Auxiliary and recording instruments in astronomy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9555W Other astronomical and space-research instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9575 Astronomical techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9575D Astronomical photographic and electronic imaging, and photometry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9575F Astronomical spectroscopy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9575H Astronomical polarimetry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9575K Astronomical interferometry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9575M Astronomical data and image processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9575P Mathematical and computer techniques in astronomy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9575S Other astronomical techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9580 Astronomical observations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9580D Radio, radar, and microwave astronomical observations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9580E Sub-millimetre astronomical observations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9580G Infrared astronomical observations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9580J Photographic region astronomical observations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9580M Space ultraviolet astronomical observations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9580N X-ray astronomical observations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9580Q gamma-ray and cosmic ray observations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9580S Other astronomical observations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • A9585 Astronomical catalogues, atlases, and finding charts
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9590 Other topics in astronomy and astrophysics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • A9600 Solar system
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • A9610 General, solar nebula, and cosmogony
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9620 Moon
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9620B Lunar origin, evolution, and age
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9620D Lunar interior, surface, and atmosphere
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9620J Lunar gravitational field, selenodesy, magnetic fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9630 Planets and satellites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9630D Mercury
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9630E Venus
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9630G Mars and satellites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9630H Asteroids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9630K Jupiter and satellites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9630M Saturn and satellites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9630P Uranus and satellites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9630Q Neptune and satellites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9630R Pluto and satellites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9630T Other planets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9630W Planetary rings
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635B Planetary origin, evolution, and ages
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635E Planetary chemical composition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635F Planetary masses, sizes; gravitational fields; rotation; orbits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635G Planetary surfaces and topography; tectonics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635H Planetary neutral atmospheres
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635K Planetary ionospheres; magnetospheres
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635M Planetary interiors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635P Planetary electric and magnetic fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9635 Planetary and satellite characteristics and properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635B Planetary origin, evolution, and ages
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635E Planetary chemical composition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635F Planetary masses, sizes; gravitational fields; rotation; orbits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635G Planetary surfaces and topography; tectonics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635H Planetary neutral atmospheres
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635K Planetary ionospheres; magnetospheres
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635M Planetary interiors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9635P Planetary electric and magnetic fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9650 Other objects in the planetary system
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9650D Interplanetary dust
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9650G Comets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9650K Meteors, showers and meteoroids
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9650M Meteorites, micrometeorites
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9660 Solar physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9660C Physical properties of the Sun
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9660F Solar chemical composition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9660H Solar magnetic and electric fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9660K Solar interior
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9660L Solar oscillations and waves
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9660M Solar photosphere, granulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9660N Solar chromosphere and chromosphere-corona transition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9660P Solar corona
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9660Q Sunspots, faculae, plages
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9660R Solar flares, bursts, and related phenomena
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9660S Solar prominences and mass ejections
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9660T Solar electromagnetic radiation and spectra
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9660V Solar particle radiation, solar wind
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9690 Other topics on the solar system
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • A9700 Stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9710 Stellar characteristics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9710B Star formation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9710C Stellar interiors, evolution, nucleosynthesis, and ages
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9710E Stellar atmospheres, radiative transfer, opacity, and line formation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9710F Circumstellar shells and expanding envelopes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9710H Stellar mass transfer
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9710K Stellar rotation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9710L Stellar magnetic and electric fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9710N Stellar masses
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9710Q Stellar diameters and surface features; oscillations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9710R Stellar radiation and spectra
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9710T Stellar abundances and chemical composition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9710V Stellar distances, parallaxes, and space density
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9710W Stellar space motions (proper motions, radial velocities, and orbits)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9720 Normal stars (by class): general or individual
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9720D Pre-main-sequence stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9720E Main-sequence: early-type stars (O and B)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9720G Main-sequence: intermediate type A and F stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9720J Main-sequence: late-type stars (G, K, and M)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9720L Late-type giants and subgiants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9720P Supergiant stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9720R Faint blue stars, white dwarfs, degenerate stars and nuclei of planetary nebulae
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9720T Population II stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9720V Brown dwarfs
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9730 Variable and peculiar stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9730D β Cep (β CMa) stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9730E Emission-line stars (Of, Wolf-Rayet, Be, etc.)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9730F Chemically peculiar stars (Ap, Am stars, etc.)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9730G δ Cep, W Vir, RV Tau, and δ Sct stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9730H S and C types and related stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9730J Long-period variables (Miras) and semi-regulars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9730K RR Lyr stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9730N Flare stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9730Q Novae, dwarf novae
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9730S Other types of variable and peculiar stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9760 Late stages of stellar evolution
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9760B Supernovae
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9760G Pulsars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9760J Neutron stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9760L Black holes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9760S Other objects believed to be disintegrating or collapsing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9780 Binary and multiple stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9780D Visual binaries and optical doubles
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9780F Spectroscopic binaries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9780G Cataclysmic binaries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9780H Eclipsing binaries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9780J X-ray binaries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9780K Multiple stars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9785A Extrasolar planetary formation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9785C Extrasolar planetary motion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9785E Extrasolar planetary chemical composition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9785F Extrasolar planetary masses
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9785H Extrasolar planetary atmospheres
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9785N Extrasolar planetary dimensions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9785P Extrasolar planetary radiation and spectra
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9785 Extrasolar planetary systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9785A Extrasolar planetary formation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9785C Extrasolar planetary motion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9785E Extrasolar planetary chemical composition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9785F Extrasolar planetary masses
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9785H Extrasolar planetary atmospheres
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9785N Extrasolar planetary dimensions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9785P Extrasolar planetary radiation and spectra
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9790 Other topics in stellar astronomy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • A9800 Stellar systems; Galactic and extragalactic objects and systems; Universe
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • A9810 Stellar dynamics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9820 Stellar clusters and associations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9820C Associations of stars (OB, T, etc.)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9820E Open clusters
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9820G Globular clusters
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9840 Interstellar medium; nebulae
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9840B Interstellar matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9840C Interstellar molecules and masers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9840F H I regions and diffuse H I
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9840H H II regions and ionised gas, emission nebulae
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9840J Interstellar IR sources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9840K Reflection nebulae, dark clouds, and molecular clouds
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9840L Star-forming regions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9840M Planetary nebulae
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9840N Supernova remnants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9850 The Galaxy, extragalactic objects and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9850B Origin, evolution, and ages of galaxies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9850C General parameters, classifications of galaxies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9850D Kinematics, dynamics, and rotation of galaxies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9850E Galactic structure, content and morphology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9850F Masses of galaxies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9850G Radiation and spectra of galaxies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9850H Red shift, distances, and spatial distribution of galaxies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9850K Groups, clusters, and superclusters of galaxies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9850L The Galaxy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9850M Local Group of galaxies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9850R Active and peculiar galaxies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9850S Radiogalaxies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9850T Intergalactic and intracluster matter
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9870 Other astronomical sources and radiations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9870D Cosmic radio sources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9870J Quasars
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9870L Cosmic IR sources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9870N Cosmic UV sources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9870Q Cosmic X-ray sources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9870R Cosmic gamma-ray sources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9870S Cosmic ray sources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9870V Background cosmic radiations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9880 Cosmology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9880B Origin and early evolution of the Universe
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9880D Theoretical cosmology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9880F Origin and formation of the light elements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • A9880L Observational cosmology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • A9890 Other topics in galactic and extragalactic astronomy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • Electrical Engineering and electronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B0000 General topics, engineering mathematics and materials science
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B0100 General electrical engineering topics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B0120 Education and training
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B0140 Administration and management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0140B Planning
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B0150 Electrical contracting and installation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0160 Plant engineering, maintenance and safety
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B0170 Project and production engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B0170C Project and design engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B0170E Production facilities and engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B0170G General fabrication techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B0170J Product packaging
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B0170L Inspection and quality control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B0170N Reliability
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B0170Q Environmental factors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B0170S Control equipment and processes in production engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B0180 Other general electrical engineering topics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B0200 Engineering mathematics and mathematical techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B0210 Algebra
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B0220 Mathematical analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B0230 Integral transforms
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B0240 Probability and statistics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B0240C Queueing theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B0240E Game theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B0240G Monte Carlo methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B0240J Markov processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B0240Z Other topics in statistics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B0250 Combinatorial mathematics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B0260 Optimisation techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B0290 Numerical analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0290B Error analysis in numerical methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0290D Functional analysis (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0290F Interpolation and function approximation (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0290H Linear algebra (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0290K Nonlinear and functional equations (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0290M Numerical integration and differentiation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0290P Differential equations (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0290R Integral equations (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0290T Finite element analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0290X Integral transforms in numerical analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0290Z Other numerical methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B0500 Materials science for electrical and electronic engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B0510 Crystal growth
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0520 Thin film growth and epitaxy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B0520B Sputter deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B0520D Vacuum deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B0520F Chemical vapour deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B0520H Pulsed laser deposition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B0520J Deposition from liquid phases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B0520X Other thin film deposition techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0530 Metals and alloys (engineering materials science)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B0540 Ceramics and refractories (engineering materials science)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B0550 Composite materials (engineering materials science)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B0560 Polymers and plastics (engineering materials science)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B0570 Glasses (engineering materials science)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B0580 Powders and porous materials (engineering materials science)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B0585 Intelligent materials (engineering materials science)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B0587 Fullerenes, carbon nanotubes, and related materials (engineering materials science)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B0590 Materials testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1100 Circuit theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B1110 Network topology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1130 General circuit analysis and synthesis methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1130B Computer-aided circuit analysis and design
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1150 Linear network analysis and design
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1150D Lumped linear networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1150F Distributed linear networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1160 Nonlinear network analysis and design
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1165 Chaotic behaviour in circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B1180 Time varying and switched networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B1190 Other and miscellaneous topics in circuit theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B1200 Electronic circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B1205 Analogue circuit design, modelling and testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B1210 Power electronics, supply and supervisory circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1220 Amplifiers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B1230 Signal generators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1230B Oscillators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1230G Function generators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1230J Pulse generators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B1250 Modulators, demodulators, discriminators and mixers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1260 Pulse circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265A Digital circuit design, modelling and testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265B Logic circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265D Memory circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265F Microprocessors and microcomputers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265G Digital signal processing chips
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265H A/D and D/A convertors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265M System-on-chip
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265N Network-on-chip
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265Z Other digital circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1265 Digital electronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265A Digital circuit design, modelling and testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265B Logic circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265D Memory circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265F Microprocessors and microcomputers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265G Digital signal processing chips
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265H A/D and D/A convertors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265M System-on-chip
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265N Network-on-chip
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1265Z Other digital circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1270 Filters and other networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1270D Passive filters and other passive networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1270E Active filters and other active networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1270F Digital filters
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1280 Mixed analogue-digital circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1285 Analogue processing circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B1290 Other analogue circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B1290B Convertors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B1295 Neural nets (circuit implementations)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B1300 Microwave technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B1305 Microwave materials and structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B1305M Metamaterials and structures (microwave)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B1310 Waveguides and microwave transmission lines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B1320 Waveguide and microwave transmission line components
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B1350 Microwave circuits and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1350D Parametric microwave circuits and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1350F Solid-state microwave circuits and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1350H Microwave integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1350P Microwave photonics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B1370 Industrial and medical applications of microwaves
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B2100 Passive circuit components, cables, switches and connectors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2110 Conductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B2120 Resistors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B2130 Capacitors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2140 Inductors and transformers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2160 Wires and cables
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2160D Cable accessories
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2180 Electrical contacts
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2180B Relays and switches
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2180E Connectors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2190 Fuses
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2200 Printed circuits, hybrid integrated circuits and molecular electronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2210 Printed circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2210B Printed circuit layout and design
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2210D Printed circuit manufacture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2210F Printed circuit accessories
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2220 Integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2220C General integrated circuit fabrication techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2220E Thin film circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2220G Thick film circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2220J Hybrid integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2230 Molecular electronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2230B Biomolecular electronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2230F Fullerene, nanotube and related devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2240 Microassembly techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2250 Multichip modules
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2300 Electron tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B2310 Vacuum physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2315 Gas discharges
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B2320 Electron emission, materials and cathodes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B2330 Electron tube technology and manufacture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2340 Vacuum tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2340B Transmitting valves
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2340E Vacuum microelectronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2350 Microwave tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2350D Travelling wave tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2350F Electron beam semiconductor tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2360 Electron beam scanned tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2360C Solid-state tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2370 Phototubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2380 Gas discharge tubes and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2390 Electron and ion microscopes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2395 Other electron tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2500 Semiconductor materials and technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B2520 Semiconductor theory, materials and properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2520C Elemental semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2520D II-VI and III-V semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2520E Oxide and ferrite semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2520F Amorphous and glassy semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2520M Other semiconductor materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B2530 Semiconductor junctions and interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2530B Semiconductor junctions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2530C Semiconductor superlattices, quantum wells and related structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2530D Semiconductor-metal interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2530F Metal-insulator-semiconductor structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2530G Metal-insulator-metal and metal-semiconductor-metal structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2530N Other semiconductor interfaces and junctions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B2550 Semiconductor technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2550A Annealing processes in semiconductor technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2550B Semiconductor doping
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2550E Surface treatment (semiconductor technology)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2550F Metallisation and interconnection technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2550G Lithography (semiconductor technology)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2550N Nanometre-scale semiconductor fabrication technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2550R Radiation effects (semiconductor technology)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2550X Semiconductor process modelling and simulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B2560 Semiconductor devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2560B Semiconductor device modelling, equivalent circuits, design and testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2560F Bulk effect devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2560H Junction and barrier diodes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2560J Bipolar transistors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2560L Thyristors and silicon controlled rectifiers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2560P Power semiconductor devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2560R Insulated gate field effect transistors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2560S Other field effect devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2560X Quantum interference devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2560Z Other semiconductor devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B2570 Semiconductor integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2570A Semiconductor integrated circuit design, layout, modelling and testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2570B Bipolar integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2570D CMOS integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2570F Other MOS integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2570H Other field effect integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2570K Mixed technology integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2570P Power integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2575B Materials for MEMS and NEMS device technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2575D Design and modelling of MEMS and NEMS devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2575F Fabrication of MEMS and NEMS devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B2575 MEMS and NEMS device technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2575B Materials for MEMS and NEMS device technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2575D Design and modelling of MEMS and NEMS devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2575F Fabrication of MEMS and NEMS devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2800 Dielectric materials and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B2810 Dielectric materials and properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2810D Dielectric breakdown and discharges
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2810E Gaseous insulation, breakdown and discharges
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2810F Piezoelectric and ferroelectric materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B2830 Insulation and insulating coatings
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2830C Organic insulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2830E Inorganic insulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B2860 Piezoelectric and ferroelectric devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2860A Piezoelectric devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2860C Acoustic wave devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2860F Ferroelectric devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B2890 Other dielectric applications and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B3100 Magnetic materials and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B3110 Magnetic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3110C Ferromagnetic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3110E Ferrites and garnets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3110M Magnetic multilayers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B3120 Magnetic material applications and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3120B Magnetic recording
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3120D Magnetic cores
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3120E Permanent magnets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3120G Microwave magnetic devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3120J Magneto-acoustic, magnetoresistive, magnetostrictive and magnetostatic wave devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3120L Magnetic bubble domain devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3120N Magnetic thin film devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3120W Other magnetic material applications and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B3200 Superconducting materials and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B3220 Superconducting materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3220B Conventional low-temperature superconducting materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3220H High-temperature superconducting materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3220M Superconducting wires and tapes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B3240 Superconducting devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3240C Superconducting junction devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3240E Superconducting coils and magnets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3240M Superconducting microwave devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3240R Superconducting receivers and detectors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B3240Y Other superconducting devices and material applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B4100 Optical materials and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4110 Optical materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B4120 Optical storage and retrieval
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B4125 Fibre optics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B4130 Optical waveguides
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B4140 Integrated optics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4145 Micro-optical devices and technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B4146 Nanophotonic devices and technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B4150 Electro-optical devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4150D Liquid crystal devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B4160 Magneto-optical devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4170 Acousto-optical devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B4180 Optical logic devices and optical computing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B4185 Optical switches
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B4190 Other optical system components
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B4190F Optical coatings and filters
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B4200 Optoelectronic materials and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B4210 Photoconducting materials and properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B4220 Luminescent materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4220M Phosphors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B4250 Photoelectric devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4260 Electroluminescent devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B4260D Light emitting diodes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4270 Integrated optoelectronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4300 Lasers and masers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B4310 Masers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B4320 Lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4320C Gas lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4320E Liquid lasers and organic dye lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4320F Fibre lasers and amplifiers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4320G Solid lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4320J Semiconductor lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4320K Free electron lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4320L Laser resonators and cavities
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4320M Laser accessories and instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B4330 Laser beam interactions and properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4330B Laser beam modulation, pulsing and switching; mode locking and tuning
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B4340 Nonlinear optics and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4340F Optical phase conjugation and multiwave mixing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4340G Optical saturation and related effects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4340J Optical self-focusing and related effects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4340K Optical harmonic generation, frequency conversion, parametric oscillation and amplification
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4340P Optical bistability, multistability and switching
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4340S Optical solitons
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B4350 Holography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4360 Laser applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B4360B Laser materials processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B4360E Metrological applications of lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B4360H Biological and medical applications of lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B5100 Electric and magnetic fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B5110 Electrostatics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B5120 Magnetostatics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B5130 Magnetic effects of electric currents
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B5140 Electromagnetic induction
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B5150 Moving charges in electric and magnetic fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B5180 Electromagnetic device applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B5180D Electrostatic devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B5180F Solenoids and electromagnets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B5180W Other electromagnetic device applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B5200 Electromagnetic waves, antennas and propagation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B5205 Artificial electromagnetic wave materials and structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B5205M Metamaterials and structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B5210 Electromagnetic wave propagation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B5210C Radiowave propagation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B5210E Light propagation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B5210H Electromagnetic wave propagation in plasma
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B5230 Electromagnetic compatibility and interference
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B5240 Transmission line theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B5240D Waveguide and cavity theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B5260 Antenna theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B5270 Antennas
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B5270B Single antennas
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B5270D Antenna arrays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B5270F Antenna accessories
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6100 Information and communication theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6110 Information theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B6120 Modulation and coding methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6120B Codes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6120D Cryptography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B6130 Speech and audio signal processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6130C Speech and audio coding
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6130E Speech recognition and synthesis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6135C Image and video coding
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6135E Image recognition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B6135 Optical, image and video signal processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6135C Image and video coding
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6135E Image recognition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B6140 Signal processing and detection
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6140B Filtering methods in signal processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6140M Signal detection
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B6150 Communication system theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6150C Communication switching
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6150D Communication channel equalisation and identification
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6150E Multiple access communication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6150J Queueing systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6150M Protocols
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6150P Communication network design, planning and routing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6200 Telecommunication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B6210 Telecommunication applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6210C Network management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6210D Telephony
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6210F Telegraphy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6210G Electronic mail
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6210H Facsimile transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6210J Telemetry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6210K Viewdata and teletext
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6210L Computer communications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6210M ISDN
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6210P Teleconferencing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6210Q Intelligent networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6210R Multimedia communications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6210Z Other data transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B6215 Telecommunication power supplies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6220 Stations and subscriber equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6220B Subscriber loops
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6220C Telephone stations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6220F ISDN and multimedia terminal equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6220J Modems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6220M Codecs, coders and decoders
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6220W Other telecommunication terminals and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6230 Switching centres and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6230B Electronic switching systems and exchanges
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6230D Other telephone exchanges
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6230F Integrated switching and transmission systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6230H Photonic switching systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6230Y Other switching centres
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6240 Transmission line links and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6240D Waveguide and coaxial cable systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6240G Submarine cable systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6240J Power line systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6240Z Other transmission line links
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6250 Radio links and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6250B Radio access systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6250D Point-to-point radio systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6250F Mobile radio systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6250G Satellite communication systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6250H Space communication systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6250K Wireless sensor networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6250L RFID systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6250Z Other radio links and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6260 Optical communication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6260C Optical communication equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6260F Optical fibre networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6260M Multiplexing and switching in optical communication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6260S Free-space optical links
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6270 Acoustic and other telecommunication systems and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6300 Radar and radionavigation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6310 Radar theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B6320 Radar equipment, systems and applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6320C Optical radar
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6320E Sonar and acoustic radar
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B6330 Radionavigation and direction finding
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6360 Radioastronomical techniques and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6400 Radio, television and audio
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B6410 Legislation, frequency allocation and spectrum pollution
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6420 Radio and television broadcasting
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6420B Radio and television transmitters
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6420D Radio and television receivers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6430 Television and video equipment, systems and applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6430B Electronic news gathering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6430C High definition television and video
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6430D CATV and wired systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6430F Closed circuit television
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6430G Video on demand and video servers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6430H Video recording
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6430J Other applications of television and video systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6450 Audio equipment and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6450B Hi-Fi equipment and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6450D Audio recording media and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6450F Sound synthesisers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B7100 Measurement science
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7110 Measurement theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7120 Measurement units
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7130 Measurement standards and calibration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7140 Determination and value of fundamental constants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7200 Measurement equipment and instrumentation systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7210 Instrumentation and measurement systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7210A Automatic test systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7210B Computerised instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7210E Instrumentation buses and protocols
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7210F Telemetering systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7210G Data acquisition systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7210N Network and spectrum analysers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7210X Other instrumentation and measurement systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7220 Signal processing and conditioning equipment and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7230 Sensing devices and transducers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7230C Photodetectors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7230E Fibre optic sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7230G Image sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7230J Biosensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7230L Chemical sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7230M Microsensors and nanosensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7230S Intelligent sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7250 Bench and portable instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7250E Signal generators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7250G Display, recording and indicating instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7250J Bridge instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7250Z Other bench instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7260 Display technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7260B Display materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7260D Display characteristics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7260F Display equipment and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7300 Measurement of specific variables
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7310 Electric and magnetic variables measurement methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7310B Voltage measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7310C Charge measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7310D Current measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7310F Power and energy measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7310G Frequency measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7310H Phase and gain measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7310J Impedance and admittance measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7310K Dielectric variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7310L Magnetic variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7310N Microwave measurement techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7310S Electric noise and interference measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7310Z Other electric variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7320 Nonelectric variables measurement methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7320C Spatial variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7320E Velocity, acceleration and rotation measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7320G Mechanical variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7320K Time measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7320M Mass and density measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7320P Optical variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7320Q Acoustic variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7320R Thermal variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7320T Chemical variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7320V Pressure and vacuum measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7320W Level, flow and volume measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7320X Humidity measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7320Z Other nonelectric variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7400 Elementary particle and nuclear instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7410 Particle accelerators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7410B Particle beam handling and diagnostics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7410D Particle sources and targets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7420 Particle and radiation detection and measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7420C Particle track visualisation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7430 Counting circuits and electronics for particle physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7440 Particle spectrometers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B7450 X-ray and gamma-ray equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B7500 Medical physics and biomedical engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7510 Biomedical measurement and imaging
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7510D Bioelectric signals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7510F Biomagnetic signals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7510H Sonic and ultrasonic radiation (biomedical imaging/measurement)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7510J Optical and laser radiation (biomedical imaging/measurement)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7510L Microwaves and other electromagnetic waves (biomedical imaging/measurement)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7510N Biomedical magnetic resonance imaging and spectroscopy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7510P X-ray techniques: radiography and computed tomography (biomedical imaging/measurement)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7510R Nuclear medicine, emission tomography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7520 Patient care and treatment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7520C Radiation therapy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7520E Prosthetics and orthotics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7520H Aids for the handicapped
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7530 Health Physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7530B Radiation protection and dosimetry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7540 Hospital Engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7550 Biomedical communication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7580 Biological engineering and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7600 Aerospace
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7605 Aerospace management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7620 Aerospace testing and simulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7630 Aerospace instrumentation and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7630A Aircraft electronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7630B Aerospace power systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7630D Space vehicle electronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7640 Aerospace propulsion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7640H Spacecraft propulsion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7640R Aircraft propulsion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7650 Ground support and air traffic control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7650A Airport and airbase operations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7650C Air traffic control and navigation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7650E Spaceports and launch facilities
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7670 Human space exploration and engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7690 Other topics in aerospace
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7700 Earth sciences
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B7710 Geophysical techniques and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7710B Atmospheric, ionospheric and magnetospheric techniques and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7710D Oceanographic and hydrological techniques and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B7720 Pollution detection and control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7730 Other topics in Earth sciences
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7800 Sonics and ultrasonics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7810 Sonic and ultrasonic equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7810C Sonic and ultrasonic transducers and sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7820 Sonic and ultrasonic applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7900 Military and defence systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7905 Policy, government and political aspects (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7910 Military circuits, components, and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7910D Sensors and transducers (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7910M Transportation (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7910R Weapons
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7910V Other military equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7930 Military communications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7930D Optical communications (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7930G Radio communications (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7930L Computer communications (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7930T Other communications (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7950 Military detection and tracking systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7950C Optical systems (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7950F Radar and radiowave systems (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7950J Sonar and acoustic systems (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7950L Chemical and biological systems (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7950P Electric and magnetic detection systems (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7950V Other detection and tracking systems (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7970 Electronic warfare
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7980 National security
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7990 Other military topics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B8100 Power networks and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8110 Power systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8110B Power system management, operation and economics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8110C Power system control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8110D Power system planning and layout
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8120 Power transmission, distribution and supply
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8120C Network and transmission line calculations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8120E a.c. transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8120G d.c. transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8120J Distribution networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8120K Distributed power generation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8120L Power supply quality and harmonics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8120W Wireless power transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8120Z Other power transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8130 Power transmission lines and cables
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8130B Power cables
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8130D Superconducting power cables
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8130F Overhead power lines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8130H Power line supports, insulators and connectors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8140 Power system protection
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8140C Protection apparatus
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8150 Power system measurement and metering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8200 Generating stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8210 Energy resources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B8215 Energy conservation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8220 Nuclear power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8220B Nuclear reactors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8230 Thermal power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8230E Steam power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8230F Gas-turbine power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8230G Combined cycle power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8230H Diesel power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8230J Geothermal power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8240 Hydroelectric power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8240B Wave power
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8240C Tidal power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8240D Pumped storage stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8245 Wind power plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8250 Solar power stations and photovoltaic power systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8255 Fuel cell power plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8260 Other power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8300 Power apparatus and electric machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B8310 a.c. machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8310D Synchronous machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8310E Asynchronous machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B8320 d.c. machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8330 Linear machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8340 Small and special purpose electric machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B8340C Piezoelectric motors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B8340M Micromotors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8350 Transformers and reactors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B8360 Power convertors and power supplies to apparatus
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8360A AC-AC power convertors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8360D DC-DC power convertors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8360J AC-DC power convertors (rectifiers)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8360N DC-AC power convertors (invertors)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8360P Pulsed power supplies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B8370 Switchgear
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8375 Substations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8380 Control gear and apparatus
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8380M Microactuators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8390 Other power apparatus and electric machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8400 Direct energy conversion and energy storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8410 Electrochemical conversion and storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8410C Primary cells
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8410E Secondary cells
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8410G Fuel cells
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8420 Solar cells and arrays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8430 Magnetohydrodynamic conversion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B8450 Energy harvesting
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8460 Other direct energy conversion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8470 Other energy storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8500 Power utilisation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B8510 Drives
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8520 Transportation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8520B Automobile electronics and electrics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8530 Lighting technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8530B Light sources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8530D Lighting
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8540 Electric heating
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8540C Process heating
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8540E Space heating
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8550 Air conditioning
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8560 Refrigeration and cold storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8570 Domestic appliances
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8580 Other power utilisation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8600 Industrial applications of power
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B8610 Power applications in metallurgical industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8620 Power applications in manufacturing industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8630 Power applications in chemical and oil refining industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B8640 Power applications in textile industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8650 Power applications in wood-processing, pulp and paper industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8660 Power applications in printing industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8670 Power applications in glass, ceramic, brick and cement industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8680 Power applications in agriculture and horticulture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B8690 Power applications in food processing industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8695 Power applications in water treatment and supply
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8699 Power applications in other industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B1000 Circuit theory and circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B1100 Circuit theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B1110 Network topology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B1130 General circuit analysis and synthesis methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1130B Computer-aided circuit analysis and design
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B1150 Linear network analysis and design
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1150D Lumped linear networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1150F Distributed linear networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B1160 Nonlinear network analysis and design
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1165 Chaotic behaviour in circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B1180 Time varying and switched networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1190 Other and miscellaneous topics in circuit theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1200 Electronic circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1205 Analogue circuit design, modelling and testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B1210 Power electronics, supply and supervisory circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B1220 Amplifiers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B1230 Signal generators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B1230B Oscillators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B1230G Function generators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B1230J Pulse generators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B1250 Modulators, demodulators, discriminators and mixers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B1260 Pulse circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265A Digital circuit design, modelling and testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265B Logic circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265D Memory circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265F Microprocessors and microcomputers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265G Digital signal processing chips
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265H A/D and D/A convertors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265M System-on-chip
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265N Network-on-chip
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265Z Other digital circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B1265 Digital electronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265A Digital circuit design, modelling and testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265B Logic circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265D Memory circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265F Microprocessors and microcomputers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265G Digital signal processing chips
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265H A/D and D/A convertors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265M System-on-chip
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265N Network-on-chip
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1265Z Other digital circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B1270 Filters and other networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1270D Passive filters and other passive networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1270E Active filters and other active networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1270F Digital filters
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B1280 Mixed analogue-digital circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B1285 Analogue processing circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B1290 Other analogue circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1290B Convertors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B1295 Neural nets (circuit implementations)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B1300 Microwave technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1305 Microwave materials and structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1305M Metamaterials and structures (microwave)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B1310 Waveguides and microwave transmission lines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B1320 Waveguide and microwave transmission line components
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B1350 Microwave circuits and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B1350D Parametric microwave circuits and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B1350F Solid-state microwave circuits and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B1350H Microwave integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B1350P Microwave photonics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B1370 Industrial and medical applications of microwaves
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2000 Components, electron devices and materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2100 Passive circuit components, cables, switches and connectors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2110 Conductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2120 Resistors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B2130 Capacitors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2140 Inductors and transformers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B2160 Wires and cables
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B2160D Cable accessories
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B2180 Electrical contacts
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B2180B Relays and switches
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B2180E Connectors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B2190 Fuses
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B2200 Printed circuits, hybrid integrated circuits and molecular electronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B2210 Printed circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2210B Printed circuit layout and design
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2210D Printed circuit manufacture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2210F Printed circuit accessories
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B2220 Integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2220C General integrated circuit fabrication techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2220E Thin film circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2220G Thick film circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2220J Hybrid integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B2230 Molecular electronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2230B Biomolecular electronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2230F Fullerene, nanotube and related devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B2240 Microassembly techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2250 Multichip modules
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2300 Electron tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2310 Vacuum physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2315 Gas discharges
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B2320 Electron emission, materials and cathodes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B2330 Electron tube technology and manufacture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2340 Vacuum tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B2340B Transmitting valves
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B2340E Vacuum microelectronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2350 Microwave tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B2350D Travelling wave tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B2350F Electron beam semiconductor tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2360 Electron beam scanned tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B2360C Solid-state tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B2370 Phototubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B2380 Gas discharge tubes and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B2390 Electron and ion microscopes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2395 Other electron tubes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2500 Semiconductor materials and technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2520 Semiconductor theory, materials and properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2520C Elemental semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2520D II-VI and III-V semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2520E Oxide and ferrite semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2520F Amorphous and glassy semiconductors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2520M Other semiconductor materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2530 Semiconductor junctions and interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2530B Semiconductor junctions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2530C Semiconductor superlattices, quantum wells and related structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2530D Semiconductor-metal interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2530F Metal-insulator-semiconductor structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2530G Metal-insulator-metal and metal-semiconductor-metal structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2530N Other semiconductor interfaces and junctions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2550 Semiconductor technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2550A Annealing processes in semiconductor technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2550B Semiconductor doping
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2550E Surface treatment (semiconductor technology)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2550F Metallisation and interconnection technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2550G Lithography (semiconductor technology)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2550N Nanometre-scale semiconductor fabrication technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2550R Radiation effects (semiconductor technology)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2550X Semiconductor process modelling and simulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2560 Semiconductor devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2560B Semiconductor device modelling, equivalent circuits, design and testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2560F Bulk effect devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2560H Junction and barrier diodes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2560J Bipolar transistors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2560L Thyristors and silicon controlled rectifiers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2560P Power semiconductor devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2560R Insulated gate field effect transistors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2560S Other field effect devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2560X Quantum interference devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2560Z Other semiconductor devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2570 Semiconductor integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2570A Semiconductor integrated circuit design, layout, modelling and testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2570B Bipolar integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2570D CMOS integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2570F Other MOS integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2570H Other field effect integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2570K Mixed technology integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2570P Power integrated circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2575B Materials for MEMS and NEMS device technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2575D Design and modelling of MEMS and NEMS devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2575F Fabrication of MEMS and NEMS devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2575 MEMS and NEMS device technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2575B Materials for MEMS and NEMS device technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2575D Design and modelling of MEMS and NEMS devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2575F Fabrication of MEMS and NEMS devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B2800 Dielectric materials and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2810 Dielectric materials and properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2810D Dielectric breakdown and discharges
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2810E Gaseous insulation, breakdown and discharges
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2810F Piezoelectric and ferroelectric materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2830 Insulation and insulating coatings
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2830C Organic insulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2830E Inorganic insulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2860 Piezoelectric and ferroelectric devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2860A Piezoelectric devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2860C Acoustic wave devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B2860F Ferroelectric devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B2890 Other dielectric applications and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B3000 Magnetic and superconducting materials and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B3100 Magnetic materials and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B3110 Magnetic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3110C Ferromagnetic materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3110E Ferrites and garnets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3110M Magnetic multilayers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B3120 Magnetic material applications and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3120B Magnetic recording
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3120D Magnetic cores
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3120E Permanent magnets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3120G Microwave magnetic devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3120J Magneto-acoustic, magnetoresistive, magnetostrictive and magnetostatic wave devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3120L Magnetic bubble domain devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3120N Magnetic thin film devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3120W Other magnetic material applications and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B3200 Superconducting materials and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B3220 Superconducting materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3220B Conventional low-temperature superconducting materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3220H High-temperature superconducting materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3220M Superconducting wires and tapes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B3240 Superconducting devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3240C Superconducting junction devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3240E Superconducting coils and magnets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3240M Superconducting microwave devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3240R Superconducting receivers and detectors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B3240Y Other superconducting devices and material applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B4000 Optical materials and applications, electro-optics and optoelectronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B4100 Optical materials and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4110 Optical materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B4120 Optical storage and retrieval
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B4125 Fibre optics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4130 Optical waveguides
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B4140 Integrated optics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B4145 Micro-optical devices and technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B4146 Nanophotonic devices and technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B4150 Electro-optical devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4150D Liquid crystal devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B4160 Magneto-optical devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4170 Acousto-optical devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B4180 Optical logic devices and optical computing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B4185 Optical switches
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4190 Other optical system components
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B4190F Optical coatings and filters
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B4200 Optoelectronic materials and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B4210 Photoconducting materials and properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B4220 Luminescent materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B4220M Phosphors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B4250 Photoelectric devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B4260 Electroluminescent devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B4260D Light emitting diodes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B4270 Integrated optoelectronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B4300 Lasers and masers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B4310 Masers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B4320 Lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4320C Gas lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4320E Liquid lasers and organic dye lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4320F Fibre lasers and amplifiers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4320G Solid lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4320J Semiconductor lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4320K Free electron lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4320L Laser resonators and cavities
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4320M Laser accessories and instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B4330 Laser beam interactions and properties
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4330B Laser beam modulation, pulsing and switching; mode locking and tuning
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B4340 Nonlinear optics and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4340F Optical phase conjugation and multiwave mixing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4340G Optical saturation and related effects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4340J Optical self-focusing and related effects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4340K Optical harmonic generation, frequency conversion, parametric oscillation and amplification
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4340P Optical bistability, multistability and switching
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4340S Optical solitons
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B4350 Holography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B4360 Laser applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B4360B Laser materials processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B4360E Metrological applications of lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B4360H Biological and medical applications of lasers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B5000 Electromagnetic fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B5100 Electric and magnetic fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B5110 Electrostatics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B5120 Magnetostatics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B5130 Magnetic effects of electric currents
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B5140 Electromagnetic induction
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B5150 Moving charges in electric and magnetic fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B5180 Electromagnetic device applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B5180D Electrostatic devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B5180F Solenoids and electromagnets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B5180W Other electromagnetic device applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B5200 Electromagnetic waves, antennas and propagation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B5205 Artificial electromagnetic wave materials and structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B5205M Metamaterials and structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B5210 Electromagnetic wave propagation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B5210C Radiowave propagation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B5210E Light propagation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B5210H Electromagnetic wave propagation in plasma
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B5230 Electromagnetic compatibility and interference
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B5240 Transmission line theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B5240D Waveguide and cavity theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B5260 Antenna theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B5270 Antennas
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B5270B Single antennas
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B5270D Antenna arrays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B5270F Antenna accessories
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6000 Communications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B6100 Information and communication theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6110 Information theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B6120 Modulation and coding methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6120B Codes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6120D Cryptography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B6130 Speech and audio signal processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6130C Speech and audio coding
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6130E Speech recognition and synthesis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6135C Image and video coding
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6135E Image recognition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B6135 Optical, image and video signal processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6135C Image and video coding
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6135E Image recognition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B6140 Signal processing and detection
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6140B Filtering methods in signal processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6140M Signal detection
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B6150 Communication system theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6150C Communication switching
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6150D Communication channel equalisation and identification
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6150E Multiple access communication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6150J Queueing systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6150M Protocols
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6150P Communication network design, planning and routing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6200 Telecommunication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B6210 Telecommunication applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6210C Network management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6210D Telephony
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6210F Telegraphy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6210G Electronic mail
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6210H Facsimile transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6210J Telemetry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6210K Viewdata and teletext
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6210L Computer communications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6210M ISDN
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6210P Teleconferencing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6210Q Intelligent networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6210R Multimedia communications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6210Z Other data transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B6215 Telecommunication power supplies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6220 Stations and subscriber equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6220B Subscriber loops
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6220C Telephone stations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6220F ISDN and multimedia terminal equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6220J Modems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6220M Codecs, coders and decoders
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6220W Other telecommunication terminals and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6230 Switching centres and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6230B Electronic switching systems and exchanges
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6230D Other telephone exchanges
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6230F Integrated switching and transmission systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6230H Photonic switching systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6230Y Other switching centres
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6240 Transmission line links and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6240D Waveguide and coaxial cable systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6240G Submarine cable systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6240J Power line systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6240Z Other transmission line links
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6250 Radio links and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6250B Radio access systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6250D Point-to-point radio systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6250F Mobile radio systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6250G Satellite communication systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6250H Space communication systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6250K Wireless sensor networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6250L RFID systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6250Z Other radio links and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6260 Optical communication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6260C Optical communication equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6260F Optical fibre networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6260M Multiplexing and switching in optical communication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6260S Free-space optical links
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6270 Acoustic and other telecommunication systems and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B6300 Radar and radionavigation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B6310 Radar theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B6320 Radar equipment, systems and applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6320C Optical radar
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6320E Sonar and acoustic radar
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B6330 Radionavigation and direction finding
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6360 Radioastronomical techniques and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B6400 Radio, television and audio
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B6410 Legislation, frequency allocation and spectrum pollution
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B6420 Radio and television broadcasting
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6420B Radio and television transmitters
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6420D Radio and television receivers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B6430 Television and video equipment, systems and applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6430B Electronic news gathering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6430C High definition television and video
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6430D CATV and wired systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6430F Closed circuit television
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6430G Video on demand and video servers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6430H Video recording
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6430J Other applications of television and video systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B6450 Audio equipment and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6450B Hi-Fi equipment and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6450D Audio recording media and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B6450F Sound synthesisers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7000 Instrumentation and special applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7100 Measurement science
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7110 Measurement theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7120 Measurement units
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B7130 Measurement standards and calibration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7140 Determination and value of fundamental constants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7200 Measurement equipment and instrumentation systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7210 Instrumentation and measurement systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7210A Automatic test systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7210B Computerised instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7210E Instrumentation buses and protocols
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7210F Telemetering systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7210G Data acquisition systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7210N Network and spectrum analysers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7210X Other instrumentation and measurement systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7220 Signal processing and conditioning equipment and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7230 Sensing devices and transducers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7230C Photodetectors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7230E Fibre optic sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7230G Image sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7230J Biosensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7230L Chemical sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7230M Microsensors and nanosensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7230S Intelligent sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7250 Bench and portable instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7250E Signal generators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7250G Display, recording and indicating instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7250J Bridge instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7250Z Other bench instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7260 Display technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7260B Display materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7260D Display characteristics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7260F Display equipment and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7300 Measurement of specific variables
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7310 Electric and magnetic variables measurement methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7310B Voltage measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7310C Charge measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7310D Current measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7310F Power and energy measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7310G Frequency measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7310H Phase and gain measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7310J Impedance and admittance measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7310K Dielectric variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7310L Magnetic variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7310N Microwave measurement techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7310S Electric noise and interference measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7310Z Other electric variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7320 Nonelectric variables measurement methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7320C Spatial variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7320E Velocity, acceleration and rotation measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7320G Mechanical variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7320K Time measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7320M Mass and density measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7320P Optical variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7320Q Acoustic variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7320R Thermal variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7320T Chemical variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7320V Pressure and vacuum measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7320W Level, flow and volume measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7320X Humidity measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7320Z Other nonelectric variables measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7400 Elementary particle and nuclear instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7410 Particle accelerators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7410B Particle beam handling and diagnostics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7410D Particle sources and targets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7420 Particle and radiation detection and measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7420C Particle track visualisation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7430 Counting circuits and electronics for particle physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7440 Particle spectrometers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7450 X-ray and gamma-ray equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7500 Medical physics and biomedical engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7510 Biomedical measurement and imaging
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7510D Bioelectric signals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7510F Biomagnetic signals
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7510H Sonic and ultrasonic radiation (biomedical imaging/measurement)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7510J Optical and laser radiation (biomedical imaging/measurement)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7510L Microwaves and other electromagnetic waves (biomedical imaging/measurement)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7510N Biomedical magnetic resonance imaging and spectroscopy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7510P X-ray techniques: radiography and computed tomography (biomedical imaging/measurement)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7510R Nuclear medicine, emission tomography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7520 Patient care and treatment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7520C Radiation therapy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7520E Prosthetics and orthotics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7520H Aids for the handicapped
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7530 Health Physics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7530B Radiation protection and dosimetry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7540 Hospital Engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7550 Biomedical communication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B7580 Biological engineering and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B7600 Aerospace
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7605 Aerospace management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7620 Aerospace testing and simulation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7630 Aerospace instrumentation and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7630A Aircraft electronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7630B Aerospace power systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7630D Space vehicle electronics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7640 Aerospace propulsion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7640H Spacecraft propulsion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7640R Aircraft propulsion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7650 Ground support and air traffic control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7650A Airport and airbase operations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7650C Air traffic control and navigation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7650E Spaceports and launch facilities
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7670 Human space exploration and engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7690 Other topics in aerospace
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B7700 Earth sciences
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7710 Geophysical techniques and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7710B Atmospheric, ionospheric and magnetospheric techniques and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7710D Oceanographic and hydrological techniques and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B7720 Pollution detection and control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7730 Other topics in Earth sciences
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B7800 Sonics and ultrasonics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7810 Sonic and ultrasonic equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B7810C Sonic and ultrasonic transducers and sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7820 Sonic and ultrasonic applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B7900 Military and defence systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B7905 Policy, government and political aspects (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7910 Military circuits, components, and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7910D Sensors and transducers (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7910M Transportation (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7910R Weapons
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7910V Other military equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7930 Military communications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7930D Optical communications (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7930G Radio communications (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7930L Computer communications (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7930T Other communications (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7950 Military detection and tracking systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7950C Optical systems (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7950F Radar and radiowave systems (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7950J Sonar and acoustic systems (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7950L Chemical and biological systems (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7950P Electric and magnetic detection systems (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7950V Other detection and tracking systems (military and defence)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B7970 Electronic warfare
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B7980 National security
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B7990 Other military topics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8000 Power systems and applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8100 Power networks and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8110 Power systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8110B Power system management, operation and economics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8110C Power system control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8110D Power system planning and layout
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8120 Power transmission, distribution and supply
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8120C Network and transmission line calculations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8120E a.c. transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8120G d.c. transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8120J Distribution networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8120K Distributed power generation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8120L Power supply quality and harmonics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8120W Wireless power transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8120Z Other power transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8130 Power transmission lines and cables
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8130B Power cables
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8130D Superconducting power cables
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8130F Overhead power lines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8130H Power line supports, insulators and connectors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8140 Power system protection
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8140C Protection apparatus
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8150 Power system measurement and metering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8200 Generating stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8210 Energy resources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B8215 Energy conservation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8220 Nuclear power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8220B Nuclear reactors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8230 Thermal power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8230E Steam power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8230F Gas-turbine power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8230G Combined cycle power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8230H Diesel power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8230J Geothermal power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8240 Hydroelectric power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8240B Wave power
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8240C Tidal power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8240D Pumped storage stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8245 Wind power plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8250 Solar power stations and photovoltaic power systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B8255 Fuel cell power plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8260 Other power stations and plants
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8300 Power apparatus and electric machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8310 a.c. machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8310D Synchronous machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8310E Asynchronous machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8320 d.c. machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8330 Linear machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8340 Small and special purpose electric machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B8340C Piezoelectric motors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B8340M Micromotors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8350 Transformers and reactors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B8360 Power convertors and power supplies to apparatus
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8360A AC-AC power convertors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8360D DC-DC power convertors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8360J AC-DC power convertors (rectifiers)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8360N DC-AC power convertors (invertors)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8360P Pulsed power supplies
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B8370 Switchgear
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8375 Substations
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8380 Control gear and apparatus
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B8380M Microactuators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8390 Other power apparatus and electric machines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8400 Direct energy conversion and energy storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B8410 Electrochemical conversion and storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8410C Primary cells
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8410E Secondary cells
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8410G Fuel cells
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B8420 Solar cells and arrays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8430 Magnetohydrodynamic conversion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8450 Energy harvesting
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8460 Other direct energy conversion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8470 Other energy storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8500 Power utilisation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B8510 Drives
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8520 Transportation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8520B Automobile electronics and electrics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8530 Lighting technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8530B Light sources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8530D Lighting
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8540 Electric heating
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8540C Process heating
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8540E Space heating
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8550 Air conditioning
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8560 Refrigeration and cold storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B8570 Domestic appliances
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8580 Other power utilisation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8600 Industrial applications of power
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8610 Power applications in metallurgical industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8620 Power applications in manufacturing industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8630 Power applications in chemical and oil refining industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • B8640 Power applications in textile industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • B8650 Power applications in wood-processing, pulp and paper industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • B8660 Power applications in printing industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • B8670 Power applications in glass, ceramic, brick and cement industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • B8680 Power applications in agriculture and horticulture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • B8690 Power applications in food processing industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • B8695 Power applications in water treatment and supply
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • B8699 Power applications in other industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • Computing and Control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C0000 General and management topics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C0100 General control topics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C0110 Control education and training
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C0130 Economic, social and political aspects of control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C0200 General computer topics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C0220 Computing education and training
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C0230 Economic, social and political aspects of computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C0230B Legal aspects of computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C0240 Ergonomic aspects of computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C0250 Environmental aspects of computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C0300 Management topics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C0310 Computing/EDP management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C0310B Computer facilities
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C0310D Computer installation management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C0310F Software management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C0310H Computer equipment and software evaluation methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C0310P Computing/DP personnel management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C0310S Computing security management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C0320 Control engineering management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1100 Mathematical techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1110 Algebra
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1120 Mathematical analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C1130 Integral transforms
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C1140 Probability and statistics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1140C Queueing theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1140E Game theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1140G Monte Carlo methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1140J Markov processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1140Z Other topics in statistics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C1160 Combinatorial mathematics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1180 Optimisation techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1200 Systems theory and cybernetics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C1210 General system theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C1210B Reliability theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C1220 Simulation, modelling and identification
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C1230 Artificial intelligence
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1230D Neural nets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1230L Learning in AI
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1230R Reasoning and inference in AI
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C1240 Adaptive system theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1250 Pattern recognition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1250B Character recognition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1250C Speech recognition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1250M Image recognition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1260 Information theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1260C Cryptography theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1260S Signal processing theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1270 Man-machine systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1290 Applications of systems theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1290B Systems theory applications in natural resources and ecology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1290D Systems theory applications in economics and business
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1290E Systems theory applications in emergency management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1290F Systems theory applications in industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1290H Systems theory applications in transportation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1290J Systems theory applications in education
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1290L Systems theory applications in biology and medicine
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1290N Systems theory applications in demography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1290P Systems theory applications in social science and politics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1290Z Other applications of systems theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1295 Other topics in systems theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1300 Control theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1310 Control system analysis and synthesis methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C1320 Stability in control theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C1330 Optimal control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1340 Specific control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C1340B Multivariable control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C1340D Discrete control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C1340E Self-adjusting control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C1340F Fuzzy control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C1340G Time-varying control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C1340J Distributed parameter control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C1340K Nonlinear control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C1340L Linear control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C1340N Neurocontrol
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C1340Z Other control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1390 Other topics in control theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3100 Control and measurement of specific variables
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3110 Electric and magnetic variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3110B Voltage control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3110D Current control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3110E Power and energy control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3110G Frequency control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3110H Phase and gain control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3110J Impedance and admittance control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3110K Dielectric variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3110L Magnetic variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3110Z Other electric variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3120 Nonelectric variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3120C Spatial variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3120E Velocity, acceleration and rotation control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3120F Mechanical variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3120H Time control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3120K Mass and density control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3120M Optical variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3120N Thermal variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3120P Chemical variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3120R Pressure and vacuum control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3120T Level, flow and volume control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3120Z Other nonelectric variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3200 Control equipment and instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3210 Control systems and instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3210B Recorders and indicators for control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3210G Data acquisition systems for control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3210J Meters and gauges for control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3210P Control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3210T Signal conditioning for control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3210Z Other control instrumentation and measurement systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3220 Controllers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3220B Programmable controllers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3230 Control logic
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3230C Electronic control logic
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3230E Fluid logic
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3230Z Other control logic elements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3240 Transducers and sensing devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3240D Electric transducers and sensing devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3240F Nonelectric transducers and sensing devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3240H Fibre optic sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3240K Image sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3240M Tactile sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3240N Intelligent sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3240P Microsensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3250 Telecontrol and telemetering components
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3260 Actuating and final control devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C3260B Electric actuators and final control equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C3260G Hydraulic and pneumatic control equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C3260J Electrohydraulic and electropneumatic control equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C3260N Intelligent actuators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C3260P Microactuators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C3260Q Electromagnetic actuators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C3260R Electromechanical actuators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C3260Z Other final control equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3290 Other control equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3300 Control applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C3310 Natural resources and environmental control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3310C Control applications in agriculture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3310E Control applications in mining, oil and natural gas technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3310G Pollution control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3310J Control applications in other natural resources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C3320 Control applications to materials handling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3320B Control applications to postal services
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C3330 Control applications in building and civil engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3340 Control of power systems and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3340B Control of heat systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3340D Control of hydraulic systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3340F Control of nuclear systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3340H Control of electric power systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3340Z Control of other power systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3350 Control in industrial production systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3350C Control applications in metallurgical industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3350E Control applications in the electronics industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3350G Control applications in chemical and oil refining industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3350H Control applications in textile industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3350J Control applications in wood-processing, pulp and paper industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3350L Control applications in printing and associated industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3350N Control applications in glass, ceramics, brick and cement industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3350P Control applications in food processing industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3350Z Control applications in other industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3355C Control applications in machining processes and machine tools
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3355F Control applications in assembling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3355Z Control applications in other manufacturing processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3355 Control applications in manufacturing processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3355C Control applications in machining processes and machine tools
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3355F Control applications in assembling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3355Z Control applications in other manufacturing processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3360 Transportation system control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3360B Road-traffic system control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3360D Rail-traffic system control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3360F Control of other land traffic systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3360H Control of lift and aerial cableway systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3360J Marine system control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3360L Aerospace control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3360Z Control of other transport systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3365 Automated buildings
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3370 Control applications in telecommunications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3370C Control applications in telephony
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3370E Control applications in telegraphy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3370G Control applications in data transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3370H Control applications in radio and radar
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3370J Control applications in television
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3370L Control applications in remote signalling, dispatching and safety devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3370N Control applications in photography and cinematography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3370P Control applications in video and audio techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3370R Control applications in optical communication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3370Z Other control applications in telecommunications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3375 Military control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3380 Control applications in instrumentation systems and laboratory techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3380B Control of electronic instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3380D Control of physical instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3380E Control of astronomical instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3380L Laboratory control techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3380P Control of optical systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3380R Control applications to materials processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3380Z Other control applications in instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3385C Prosthetic and orthotic control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3385 Biological and medical control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3385C Prosthetic and orthotic control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3390 Robotics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3390C Mobile robots
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3390M Manipulators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3390T Telerobotics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3395 Other applications of control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C4100 Numerical analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C4110 Error analysis in numerical methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C4120 Functional analysis (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C4130 Interpolation and function approximation (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C4140 Linear algebra (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C4150 Nonlinear and functional equations (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C4160 Numerical integration and differentiation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C4170 Differential equations (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C4180 Integral equations (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C4185 Finite element analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C4188 Integral transforms in numerical analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C4190 Other numerical methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C4200 Computer theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C4210 Formal logic
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C4210L Formal languages and computational linguistics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C4220 Automata theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C4230 Switching theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C4230B Combinatorial switching theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C4230D Sequential switching theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C4230M Multiprocessor interconnection
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C4240 Programming and algorithm theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C4240C Computational complexity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C4240L Logic programming theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C4240P Parallel programming and algorithm theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C4250 Database theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C4260 Computational geometry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C4270 Quantum computing theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C4280 Biocomputing theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C4290 Other computer theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5100 Circuits and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5110 Logic elements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5110C Semiconductor logic elements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5110D Optical logic elements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5110E Other logic elements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5120 Logic and switching circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5130 Microprocessor chips
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5135 Digital signal processing chips
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C5137 System-on-chip
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5139 Network-on-chip
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5140 Firmware
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5150 Other circuits for digital computers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5160 Analogue circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5180 A/D and D/A convertors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5190 Neural net devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5200 Logic design and digital techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5210 Logic design methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C5210B Computer-aided logic design
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5215 Hardware-software codesign
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C5220 Computer architecture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5220P Parallel architecture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C5230 Digital arithmetic methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5240 Digital filters
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5250 Microcomputer techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5260 Digital signal processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5260A Sensor fusion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5260B Computer vision and image processing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5260D Video signal processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5260S Speech processing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5270 Optical computing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5280 Other digital techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5285 Biocomputing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5290 Neural computing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5295 Quantum computing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5300 Computer storage equipment and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C5310 Storage system design
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5320 Digital storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5320C Storage on moving magnetic media
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5320E Storage on stationary magnetic media
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5320G Semiconductor storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5320K Optical storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5320M Memory cards
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5320Z Other digital storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5330 Analogue storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5340 Associative storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5380 Other aspects of storage devices and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5400 Analogue and digital computers and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5420 Mainframes and minicomputers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5430 Microcomputers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5440 Multiprocessing systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5450 Analogue and hybrid computers and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C5460 Analogue and hybrid computing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5470 Performance evaluation and testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5480 Security aspects of hardware
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5490 Other aspects of analogue and digital computers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5500 Computer peripheral equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5520 Data acquisition equipment and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5530 Pattern recognition and computer vision equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5540 Terminals and graphic displays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5540B Interactive-input devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5540D Computer displays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5550 Printers, plotters and other hard-copy output devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5560 Data preparation equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C5580 Computer output on microform (COM)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5585 Speech recognition and synthesis equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5590 Other computer peripheral equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5600 Data communication equipment and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5610 Computer interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5610F Instrumentation buses
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5610N Network interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5610P Peripheral interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5610S System buses
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5620 Computer networks and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5620L Local area networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5620M Metropolitan area networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5620W Other computer networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5630 Networking equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5630M Multimedia servers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5640 Protocols
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5670 Network performance
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5690 Other data communication equipment and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C6100 Software techniques and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C6110 Systems analysis and programming
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C6110B Software engineering techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C6110F Formal methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C6110J Object-oriented programming
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C6110L Logic programming
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C6110P Parallel programming
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C6110R Software performance evaluation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C6110S Software metrics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C6110V Visual programming
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C6115 Programming support
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C6120 File organisation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C6130 Data handling techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6130B Graphics techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6130D Document processing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6130E Data interchange
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6130G Groupware
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6130M Multimedia
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6130S Data security
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6130V Virtual reality
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C6140 Programming languages
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6140B Machine-oriented languages
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6140D High level languages
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6140E Other programming languages
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C6150 Systems software
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6150C Compilers, interpreters and other processors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6150E General utility programs
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6150G Diagnostic, testing, debugging and evaluating systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6150J Operating systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6150Z Other systems operation programs
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C6155 Computer communications software
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6160 Database management systems (DBMS)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6160B Distributed databases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6160D Relational databases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6160J Object-oriented databases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6160K Deductive databases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6160M Multimedia databases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6160S Spatial and pictorial databases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6160Z Other DBMS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6170 Expert systems and other AI software and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6170K Knowledge engineering techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6170T Knowledge engineering tools
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6180 User interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6180G Graphical user interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6180N Natural language processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6180R Human-robot interaction
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6185 Simulation techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6190 Distributed systems software
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C6190G Grid computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C6190J Internet software
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C6190P Parallel software
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C6190V Mobile, ubiquitous and pervasive computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C6190Z Other distributed systems software
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7100 Business and administrative computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7102 Decision support systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7104 Office automation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7106 Word processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C7108 Desktop publishing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7110 Educational administration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7120 Financial computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7130 Public administration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7135 Emergency management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7140 Medical administration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7150 Military administration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7160 Manufacturing and industrial administration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C7165 Public utility administration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7170 Marketing computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7180 Retailing and distribution computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7185 Administration of other service industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7190 Other fields of business and administrative computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7200 Information science and documentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7210 Information services and centres
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7210L Library automation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7210N Information networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7220 Generation, dissemination, and use of information
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7230 Publishing and reproduction
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7240 Information analysis and indexing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C7250 Information storage and retrieval
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7250C Bibliographic retrieval systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7250L Non-bibliographic retrieval systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7250N Search engines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7250R Information retrieval techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C7260 Information science education
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7290 Other aspects of information science and documentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7300 Natural sciences computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7310 Mathematics computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7320 Physics and chemistry computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7330 Biology and medical computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7340 Geophysics computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7350 Astronomy and astrophysics computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7360 Environmental science computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C7390 Other natural sciences computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C7400 Engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7410 Electrical engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7410B Power engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7410D Electronic engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7410F Communications computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7410H Computerised instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7415 Optical engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7420 Control engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7420D Control system design and analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7430 Computer engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7440 Civil and mechanical engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7445 Traffic engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7450 Chemical engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7460 Aerospace engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7465 Military engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C7470 Nuclear engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7480 Production engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7490 Computing in other engineering fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7800 Other computer applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7810 Social and behavioural sciences computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7810C Computer-aided instruction
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7820 Humanities computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7820M Machine translation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7830 Home computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7830B Hobby computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7830D Computer games
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7840 Geography and cartography computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7850 Computer assistance for persons with handicaps
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7860 Agriculture, forestry and fisheries computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7890 Other special applications of computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1000 Systems and control theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C1100 Mathematical techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C1110 Algebra
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1120 Mathematical analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C1130 Integral transforms
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C1140 Probability and statistics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1140C Queueing theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1140E Game theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1140G Monte Carlo methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1140J Markov processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1140Z Other topics in statistics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C1160 Combinatorial mathematics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1180 Optimisation techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1200 Systems theory and cybernetics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1210 General system theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1210B Reliability theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1220 Simulation, modelling and identification
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1230 Artificial intelligence
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C1230D Neural nets
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C1230L Learning in AI
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C1230R Reasoning and inference in AI
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C1240 Adaptive system theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C1250 Pattern recognition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C1250B Character recognition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C1250C Speech recognition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C1250M Image recognition
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C1260 Information theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C1260C Cryptography theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C1260S Signal processing theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C1270 Man-machine systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C1290 Applications of systems theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1290B Systems theory applications in natural resources and ecology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1290D Systems theory applications in economics and business
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1290E Systems theory applications in emergency management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1290F Systems theory applications in industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1290H Systems theory applications in transportation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1290J Systems theory applications in education
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1290L Systems theory applications in biology and medicine
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1290N Systems theory applications in demography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1290P Systems theory applications in social science and politics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1290Z Other applications of systems theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C1295 Other topics in systems theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C1300 Control theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C1310 Control system analysis and synthesis methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C1320 Stability in control theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C1330 Optimal control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1340 Specific control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1340B Multivariable control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1340D Discrete control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1340E Self-adjusting control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1340F Fuzzy control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1340G Time-varying control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1340J Distributed parameter control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1340K Nonlinear control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1340L Linear control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1340N Neurocontrol
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C1340Z Other control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C1390 Other topics in control theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3000 Control technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C3100 Control and measurement of specific variables
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3110 Electric and magnetic variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3110B Voltage control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3110D Current control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3110E Power and energy control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3110G Frequency control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3110H Phase and gain control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3110J Impedance and admittance control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3110K Dielectric variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3110L Magnetic variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3110Z Other electric variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3120 Nonelectric variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3120C Spatial variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3120E Velocity, acceleration and rotation control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3120F Mechanical variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3120H Time control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3120K Mass and density control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3120M Optical variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3120N Thermal variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3120P Chemical variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3120R Pressure and vacuum control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3120T Level, flow and volume control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3120Z Other nonelectric variables control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C3200 Control equipment and instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3210 Control systems and instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3210B Recorders and indicators for control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3210G Data acquisition systems for control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3210J Meters and gauges for control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3210P Control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3210T Signal conditioning for control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3210Z Other control instrumentation and measurement systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3220 Controllers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3220B Programmable controllers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3230 Control logic
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3230C Electronic control logic
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3230E Fluid logic
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3230Z Other control logic elements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3240 Transducers and sensing devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3240D Electric transducers and sensing devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3240F Nonelectric transducers and sensing devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3240H Fibre optic sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3240K Image sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3240M Tactile sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3240N Intelligent sensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3240P Microsensors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C3250 Telecontrol and telemetering components
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3260 Actuating and final control devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3260B Electric actuators and final control equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3260G Hydraulic and pneumatic control equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3260J Electrohydraulic and electropneumatic control equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3260N Intelligent actuators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3260P Microactuators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3260Q Electromagnetic actuators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3260R Electromechanical actuators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3260Z Other final control equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3290 Other control equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C3300 Control applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3310 Natural resources and environmental control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3310C Control applications in agriculture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3310E Control applications in mining, oil and natural gas technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3310G Pollution control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3310J Control applications in other natural resources
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3320 Control applications to materials handling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3320B Control applications to postal services
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C3330 Control applications in building and civil engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3340 Control of power systems and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3340B Control of heat systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3340D Control of hydraulic systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3340F Control of nuclear systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3340H Control of electric power systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3340Z Control of other power systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3350 Control in industrial production systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3350C Control applications in metallurgical industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3350E Control applications in the electronics industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3350G Control applications in chemical and oil refining industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3350H Control applications in textile industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3350J Control applications in wood-processing, pulp and paper industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3350L Control applications in printing and associated industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3350N Control applications in glass, ceramics, brick and cement industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3350P Control applications in food processing industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3350Z Control applications in other industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3355C Control applications in machining processes and machine tools
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3355F Control applications in assembling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3355Z Control applications in other manufacturing processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3355 Control applications in manufacturing processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3355C Control applications in machining processes and machine tools
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3355F Control applications in assembling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3355Z Control applications in other manufacturing processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3360 Transportation system control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3360B Road-traffic system control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3360D Rail-traffic system control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3360F Control of other land traffic systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3360H Control of lift and aerial cableway systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3360J Marine system control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3360L Aerospace control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3360Z Control of other transport systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C3365 Automated buildings
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3370 Control applications in telecommunications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3370C Control applications in telephony
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3370E Control applications in telegraphy
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3370G Control applications in data transmission
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3370H Control applications in radio and radar
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3370J Control applications in television
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3370L Control applications in remote signalling, dispatching and safety devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3370N Control applications in photography and cinematography
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3370P Control applications in video and audio techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3370R Control applications in optical communication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3370Z Other control applications in telecommunications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C3375 Military control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3380 Control applications in instrumentation systems and laboratory techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3380B Control of electronic instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3380D Control of physical instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3380E Control of astronomical instruments
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3380L Laboratory control techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3380P Control of optical systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3380R Control applications to materials processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3380Z Other control applications in instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3385C Prosthetic and orthotic control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3385 Biological and medical control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3385C Prosthetic and orthotic control systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3390 Robotics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3390C Mobile robots
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3390M Manipulators
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C3390T Telerobotics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C3395 Other applications of control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C4000 Numerical analysis and theoretical computer topics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C4100 Numerical analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C4110 Error analysis in numerical methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C4120 Functional analysis (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C4130 Interpolation and function approximation (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C4140 Linear algebra (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C4150 Nonlinear and functional equations (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C4160 Numerical integration and differentiation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C4170 Differential equations (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C4180 Integral equations (numerical analysis)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C4185 Finite element analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C4188 Integral transforms in numerical analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C4190 Other numerical methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C4200 Computer theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C4210 Formal logic
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C4210L Formal languages and computational linguistics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C4220 Automata theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C4230 Switching theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C4230B Combinatorial switching theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C4230D Sequential switching theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C4230M Multiprocessor interconnection
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C4240 Programming and algorithm theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C4240C Computational complexity
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C4240L Logic programming theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C4240P Parallel programming and algorithm theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C4250 Database theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C4260 Computational geometry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C4270 Quantum computing theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C4280 Biocomputing theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C4290 Other computer theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5000 Computer hardware
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5100 Circuits and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C5110 Logic elements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5110C Semiconductor logic elements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5110D Optical logic elements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5110E Other logic elements
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C5120 Logic and switching circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5130 Microprocessor chips
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5135 Digital signal processing chips
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5137 System-on-chip
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5139 Network-on-chip
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5140 Firmware
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5150 Other circuits for digital computers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5160 Analogue circuits
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C5180 A/D and D/A convertors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5190 Neural net devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5200 Logic design and digital techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5210 Logic design methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5210B Computer-aided logic design
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5215 Hardware-software codesign
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5220 Computer architecture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5220P Parallel architecture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5230 Digital arithmetic methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5240 Digital filters
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5250 Microcomputer techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5260 Digital signal processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5260A Sensor fusion
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5260B Computer vision and image processing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5260D Video signal processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5260S Speech processing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5270 Optical computing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5280 Other digital techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C5285 Biocomputing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5290 Neural computing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5295 Quantum computing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5300 Computer storage equipment and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5310 Storage system design
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5320 Digital storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5320C Storage on moving magnetic media
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5320E Storage on stationary magnetic media
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5320G Semiconductor storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5320K Optical storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5320M Memory cards
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5320Z Other digital storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5330 Analogue storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5340 Associative storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5380 Other aspects of storage devices and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5400 Analogue and digital computers and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5420 Mainframes and minicomputers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C5430 Microcomputers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5440 Multiprocessing systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5450 Analogue and hybrid computers and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5460 Analogue and hybrid computing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5470 Performance evaluation and testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5480 Security aspects of hardware
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5490 Other aspects of analogue and digital computers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5500 Computer peripheral equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5520 Data acquisition equipment and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C5530 Pattern recognition and computer vision equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5540 Terminals and graphic displays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5540B Interactive-input devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5540D Computer displays
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C5550 Printers, plotters and other hard-copy output devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C5560 Data preparation equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C5580 Computer output on microform (COM)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C5585 Speech recognition and synthesis equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5590 Other computer peripheral equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C5600 Data communication equipment and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5610 Computer interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5610F Instrumentation buses
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5610N Network interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5610P Peripheral interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5610S System buses
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5620 Computer networks and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5620L Local area networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5620M Metropolitan area networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5620W Other computer networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5630 Networking equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5630M Multimedia servers
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C5640 Protocols
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C5670 Network performance
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C5690 Other data communication equipment and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C6000 Computer software
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C6100 Software techniques and systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6110 Systems analysis and programming
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6110B Software engineering techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6110F Formal methods
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6110J Object-oriented programming
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6110L Logic programming
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6110P Parallel programming
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6110R Software performance evaluation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6110S Software metrics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6110V Visual programming
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C6115 Programming support
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C6120 File organisation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C6130 Data handling techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6130B Graphics techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6130D Document processing techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6130E Data interchange
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6130G Groupware
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6130M Multimedia
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6130S Data security
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6130V Virtual reality
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C6140 Programming languages
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6140B Machine-oriented languages
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6140D High level languages
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6140E Other programming languages
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C6150 Systems software
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6150C Compilers, interpreters and other processors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6150E General utility programs
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6150G Diagnostic, testing, debugging and evaluating systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6150J Operating systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6150Z Other systems operation programs
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C6155 Computer communications software
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6160 Database management systems (DBMS)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C6160B Distributed databases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C6160D Relational databases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C6160J Object-oriented databases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C6160K Deductive databases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C6160M Multimedia databases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C6160S Spatial and pictorial databases
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C6160Z Other DBMS
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6170 Expert systems and other AI software and techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C6170K Knowledge engineering techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C6170T Knowledge engineering tools
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6180 User interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C6180G Graphical user interfaces
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C6180N Natural language processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C6180R Human-robot interaction
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C6185 Simulation techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C6190 Distributed systems software
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C6190G Grid computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C6190J Internet software
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C6190P Parallel software
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C6190V Mobile, ubiquitous and pervasive computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C6190Z Other distributed systems software
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7000 Computer applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7100 Business and administrative computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C7102 Decision support systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7104 Office automation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7106 Word processing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7108 Desktop publishing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7110 Educational administration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7120 Financial computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7130 Public administration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7135 Emergency management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C7140 Medical administration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7150 Military administration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7160 Manufacturing and industrial administration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7165 Public utility administration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7170 Marketing computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7180 Retailing and distribution computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7185 Administration of other service industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7190 Other fields of business and administrative computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7200 Information science and documentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C7210 Information services and centres
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7210L Library automation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7210N Information networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C7220 Generation, dissemination, and use of information
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7230 Publishing and reproduction
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7240 Information analysis and indexing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7250 Information storage and retrieval
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7250C Bibliographic retrieval systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7250L Non-bibliographic retrieval systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7250N Search engines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7250R Information retrieval techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7260 Information science education
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7290 Other aspects of information science and documentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7300 Natural sciences computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7310 Mathematics computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7320 Physics and chemistry computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7330 Biology and medical computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C7340 Geophysics computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7350 Astronomy and astrophysics computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7360 Environmental science computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7390 Other natural sciences computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7400 Engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7410 Electrical engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7410B Power engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7410D Electronic engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7410F Communications computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7410H Computerised instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7415 Optical engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7420 Control engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7420D Control system design and analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7430 Computer engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7440 Civil and mechanical engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7445 Traffic engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C7450 Chemical engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7460 Aerospace engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • C7465 Military engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • C7470 Nuclear engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • C7480 Production engineering computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7490 Computing in other engineering fields
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • C7800 Other computer applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7810 Social and behavioural sciences computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7810C Computer-aided instruction
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7820 Humanities computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7820M Machine translation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7830 Home computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7830B Hobby computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7830D Computer games
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • C7840 Geography and cartography computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • C7850 Computer assistance for persons with handicaps
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • C7860 Agriculture, forestry and fisheries computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • C7890 Other special applications of computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • Information Technology for Buisness
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • D1000 General & Management aspects of Information Technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • D2000 Applications of Information Technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • D3000 General Information Technology systems and equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • D4000 Office automation - communications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • D5000 Office automation - computing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • Mechanical and Production Engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E0000 General topics in manufacturing and production engineering
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E0100 Management and business
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E0110 Organisational aspects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E0120 Management issues
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0120B General management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0120D Planning
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0120F Contractual issues
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0120H Purchasing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0120K Financial management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0120M Human resource management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0120P Marketing and sales
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0120R Customer services
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E0200 General support functions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E0210 Engineering mathematics and numerical techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0210A Algebra
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0210C Mathematical analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0210E Combinatorial mathematics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0210G Optimisation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0210J Statistics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0210L Numerical analysis
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E0220 Economics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E0230 Environmental issues
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E0240 Safety and security
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E0240C Security aspects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E0240H Health and safety aspects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E0250 Education and training
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E0260 Social and political issues
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E0270 Legal aspects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E0290 Other support functions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E0400 Information technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E0410 Information technology applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E0410D Industrial applications of IT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E0410F Business applications of IT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E0410H Mechanical engineering applications of IT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E0410Y Other engineering applications of IT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E0420 Information management
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E0430 Information resources and networks
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E1400 Design
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E1410 Ergonomics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E1500 Production technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E1510 Manufacturing systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E1520 Manufacturing processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E1520A Machining
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E1520C Assembling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E1520E Joining processes and welding
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E1520G Forming processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E1520J Powder technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E1520L Heat treatment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E1520N Surface treatment and coating techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E1520P Nanofabrication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E1520Z Other manufacturing processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E1525 Industrial processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E1530 Manufacturing facilities
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E1540 Systems theory applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1550 Control technology and theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E1550A Robotics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1560 Production equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1600 Measurement and testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E1610 Inspection and quality control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E1620 Measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E1630 Testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E1640 Instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E1650 Standards and calibration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E1700 Manufacturing resources and products
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E1710 Engineering materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E1780 Products and commodities
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E1800 Materials handling and distribution
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1810 Packaging
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E1820 Warehousing and storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E1830 Goods distribution
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E1840 Recycling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E1850 Materials handling equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E2100 General mechanics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E2110 Mechanical structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2110A General shapes and structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2110B Building structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2110C Bridges
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2110D Geotechnical structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2110Z Other structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E2120 Heat and thermodynamic processes (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2130 Fluid mechanics and aerodynamics (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E2140 Tribology (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E2150 Biomechanics (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E2160 Micromechanics (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E2170 Acoustic properties (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E2180 Specific mechanical properties (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E2180A Elasticity (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E2180B Plasticity (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E2180C Buckling and instability (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E2180D Vibrations and shock waves (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E2180E Fracture mechanics and hardness (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E2180F Ballistics and mechanical impact (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E2180Z Other specific mechanical properties (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E2200 Mechanical components, systems and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E2210 Mechanical components
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E2220 Vehicle mechanics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E2230 Robot and manipulator mechanics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E2300 Mechanical machinery
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2310 Power and plant engineering (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E2320 Engines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E2330 Mechanical drives and transmissions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E2900 Other mechanical engineering aspects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E3600 Manufacturing industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E3602 Food industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3604 Beverage industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3606 Textile industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3608 Clothing industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E3610 Leather industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E3612 Footwear industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E3614 Wood processing industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E3616 Furniture industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E3620 Paper and pulp industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3626A Pharmaceutical industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E3622 Printing industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3624 Fuel processing industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3626 Chemical industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3626A Pharmaceutical industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3628 Biotechnology industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3630 Rubber and plastics industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E3632 Glass and ceramics industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E3634 Cement and concrete industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E3636 Metallurgical industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E3638 Machinery and equipment industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E3640 Measurement and control instrumentation industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3642A Electrical equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3642C Domestic appliance manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3642F Power equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644A Semiconductor industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644C Printed circuit manufacture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644E Computer and peripheral industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644H Audio and video equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644L Communications equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644N Optoelectronics manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644P Magnetic recording industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644R Superconductor industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644T Nanotechnology industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644V Mechatronics industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E3642 Electrical industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3642A Electrical equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3642C Domestic appliance manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3642F Power equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E3644 Electronics industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644A Semiconductor industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644C Printed circuit manufacture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644E Computer and peripheral industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644H Audio and video equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644L Communications equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644N Optoelectronics manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644P Magnetic recording industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644R Superconductor industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644T Nanotechnology industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3644V Mechatronics industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E3646 Defence industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3650 Transportation industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3650A Automobile industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3650C Aerospace industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3650E Railway industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3650H Ship building and marine industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3650Z Other transportation industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3654 Medical equipment and supplies industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3690 Other manufacturing industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E1000 Manufacturing and production
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E1400 Design
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E1410 Ergonomics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E1500 Production technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E1510 Manufacturing systems
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E1520 Manufacturing processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1520A Machining
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1520C Assembling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1520E Joining processes and welding
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1520G Forming processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1520J Powder technology
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1520L Heat treatment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1520N Surface treatment and coating techniques
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1520P Nanofabrication
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1520Z Other manufacturing processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E1525 Industrial processes
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1530 Manufacturing facilities
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E1540 Systems theory applications
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E1550 Control technology and theory
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E1550A Robotics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E1560 Production equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E1600 Measurement and testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E1610 Inspection and quality control
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E1620 Measurement
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E1630 Testing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E1640 Instrumentation
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E1650 Standards and calibration
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E1700 Manufacturing resources and products
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E1710 Engineering materials
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E1780 Products and commodities
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E1800 Materials handling and distribution
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E1810 Packaging
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E1820 Warehousing and storage
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E1830 Goods distribution
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E1840 Recycling
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E1850 Materials handling equipment
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E2000 Engineering mechanics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2100 General mechanics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E2110 Mechanical structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E2110A General shapes and structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E2110B Building structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E2110C Bridges
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E2110D Geotechnical structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E2110Z Other structures
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E2120 Heat and thermodynamic processes (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E2130 Fluid mechanics and aerodynamics (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E2140 Tribology (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E2150 Biomechanics (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E2160 Micromechanics (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E2170 Acoustic properties (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E2180 Specific mechanical properties (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2180A Elasticity (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2180B Plasticity (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2180C Buckling and instability (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2180D Vibrations and shock waves (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2180E Fracture mechanics and hardness (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2180F Ballistics and mechanical impact (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2180Z Other specific mechanical properties (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E2200 Mechanical components, systems and devices
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E2210 Mechanical components
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E2220 Vehicle mechanics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E2230 Robot and manipulator mechanics
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E2300 Mechanical machinery
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E2310 Power and plant engineering (mechanical engineering)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E2320 Engines
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E2330 Mechanical drives and transmissions
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E2900 Other mechanical engineering aspects
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E3000 Industrial sectors
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3600 Manufacturing industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3602 Food industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3604 Beverage industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E3606 Textile industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E3608 Clothing industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E3610 Leather industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E3612 Footwear industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E3614 Wood processing industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3616 Furniture industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3620 Paper and pulp industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3626A Pharmaceutical industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3622 Printing industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3624 Fuel processing industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E3626 Chemical industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E3626A Pharmaceutical industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E3628 Biotechnology industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  • E3630 Rubber and plastics industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    • E3632 Glass and ceramics industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      • E3634 Cement and concrete industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        • E3636 Metallurgical industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          • E3638 Machinery and equipment industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3640 Measurement and control instrumentation industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3642A Electrical equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3642C Domestic appliance manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3642F Power equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644A Semiconductor industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644C Printed circuit manufacture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644E Computer and peripheral industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644H Audio and video equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644L Communications equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644N Optoelectronics manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644P Magnetic recording industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644R Superconductor industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644T Nanotechnology industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644V Mechatronics industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3642 Electrical industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3642A Electrical equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3642C Domestic appliance manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3642F Power equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3644 Electronics industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644A Semiconductor industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644C Printed circuit manufacture
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644E Computer and peripheral industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644H Audio and video equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644L Communications equipment manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644N Optoelectronics manufacturing
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644P Magnetic recording industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644R Superconductor industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644T Nanotechnology industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3644V Mechatronics industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            • E3646 Defence industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3650 Transportation industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E3650A Automobile industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E3650C Aerospace industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E3650E Railway industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E3650H Ship building and marine industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E3650Z Other transportation industries
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              • E3654 Medical equipment and supplies industry
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                • E3690 Other manufacturing industries